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Corrosion and Wear Failures Analysis Expert Witnesses

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Dr. Charles R. Anderson
President & Principal Scientist
9051 Red Branch Road, Suite C,
Columbia MD 21045
USA
phone: (410) 740-8562
fax: 410-740-8201
Dr. Charles R. Anderson has long specialized in the Characterization of Surfaces, Interfaces, Thin Films and Coatings. Since 1972 he has applied surface and near-surface analysis techniques such as x-ray photoelectron spectroscopy (XPS or ESCA) and Auger microprobe to the solution of surface chemistry and coating problems. He worked for the U.S. Navy and Lockheed Martin Laboratories prior to starting his own laboratory in 1995.

Dr. Anderson served as an officer of the ASTM Committee E-42 on Surface Analysis and as U.S. Expert on several sub-committees of the ISO Technical Committee 201 on Surface Chemical Analysis. He especially enjoys integrating the results of multiple analytic techniques (surface analysis, thermal analysis, FTIR, SEM/EDX, optical microscopy)to solve tough materials problems.

Dr. Anderson has extensive experience in materials science as a result of solving the materials problems of many industries with the aid many analytical techniques. He is available to provide Expert Witness Services for legal matters involving Materials Failure, Intellectual Property Theft, Misrepresentation, Failure to Meet Contract Specifications, Materials Identifications and Characteristics, or Quality Issues. To ensure the accuracy and integrity of his testimony, Dr. Anderson and his staff independently analyzes the relevant materials in most cases.

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Ole Haaland, PE
626 Admiral Drive
C-537
Annapolis MD 21401
USA
phone: 410-703-9002
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Ole Haaland Power Plant Mechanical Expert PhotoOle E. Haaland, PE, has thirty four years experience in Power Production, Design, Construction, and Commissioning, with 27 years managing people and projects. Mr. Haaland's experience is in conventional, nuclear, and alternate fuel power plant mechanical and electrical systems. He has performed as Project Manager, Construction Manager, and Commissioning Manager for several Greenfield power projects.

Mr. Haaland held a senior reactor power operator's license and a number of senior engineering positions at the New York Power Authority prior to joining ANNA. Mr. Haaland received his BSME from the New York Institute of Technology and is a registered professional engineer in many states. He was recently elected to the EGSA Board of Directors for 2015-2017.

Litigation Support - Ole Haaland conducts root cause analysis investigations for counsel representing Plaintiff and Defense. When needed, he provides expert witness testimony for power plant design, construction, and operational failure issues and for parties involved in contract disputes.

Areas of Expertise:
  • Switchgear
  • Voltage Regulators
  • Turbine Generators
  • Control Systems
  • Hydro Generators
  • Diesel Generators
  • Condensate Polishers
  • Feed Water Heaters
  • Main Condensers
  • Moisture Separators
  • Electrical Breaker Failures
  • Operational Failures
  • View Ole Haaland's Consulting Profile.
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    ANNA, Inc
    David Alley
    626 Admiral Drive C537
    Annapolis MD 21401
    USA
    phone: 410-353-4976
    David Alley is a Consulting and Forensic Engineer with over three decades of Design Engineering Experience, Field engineering experience and financial analysis experience for power Generation Projects in Cogeneration, Nuclear, Hydropower, Diesel Engine, Combustion Turbine and Gas Turbine Powered Power Generation Facilities. Mr. Alley is a National Electrical Code NFPA-70 expert and an Hazardous area delineation expert.

    BSEE-Clemson, MBA-Darden

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    Karl R. Leinsing, MSME, PE
    77 Spur Rd.
    Dover NH 03820
    USA
    phone: 603-203-0365
    fax: 603-749-0079
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    Karl R. Leinsing, MSME, PE, President of ATech Designs, Inc., is a Professional Mechanical Engineer who specializes in Medical Device Product Development from concept to production.

    Mr. Leinsing has been granted over 20 patents (needle free IV valves, laparoscopic devices, needlescopic devices, suture lockers, catheters, mitral valve repair devices, knitting machines) and excels in solving the most complicated problems and design challenges. His company has a fully equipped medical lab with calibrated measurement and test equipment and all is fully documented with high quality reports with pictures and video to provide credible results and easy to understand compelling data.

    The winner of five design awards, Mr. Leinsing is recognized as one of the top 100 medical device professionals in the nation by MD&DI. For dedication to his industry, he was made the 2014 Chairman of the Medical Device and Manufacturing Conference in Anaheim, CA. Mr. Leinsing has also been acknowledged for his work in a publication by Life Magazine.

    Mr. Leinsing offers litigation support services to the legal community. He has extensive experience with Patent and Product Liability cases including report writing, depositions, and testimony.

    Areas of Expertise:
    • Intravenous (IV) Systems & Disposables
    • Hernia Repair
    • Endometrial Ablation
    • Laparoscopic Instruments
    • Injection Ports
    • Catheters
    • Heart Valve Repair / Replacement
    • Subcutaneous Ports
  • Bed Rails
  • Cervical Screws
  • Syringes
  • IV / Insulin Pumps
  • Glucose Monitors
  • Peritoneal Dialysis Pumps
  • Abdominal Aortic Aneurysm (AAA) Repair
  • Sleep Apnea Devices (CPAP)
  • View Karl Leinsing's Consulting Profile.
    6/24/2014 · Expert Witnessing
    Experienced Medical Device Experts can assist with a case in many different ways. First, they have industry knowledge of the medical device industry and can assist with prior art in patent litigation cases for example. They understand the technology and how claim terms are understood for one skilled in the art of medical device design, testing, and manufacturing. This firsthand information can then assist with proper claim construction and infringement analysis. Experience with medical devices product development can also assist in determining what is obvious in the field and what is not as it pertains to patent validation.

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    Michael P. Schuller, PE
    David B. Woodham, PE
    2619 Spruce Street
    Boulder CO 80302
    USA
    phone: 303-444-3620
    fax: 303-444-3239
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    Atkinson-Noland & Associates, Inc. (ANA) has provided structural engineering services for federal, state, and private organizations since its founding in 1975. The unique organization of the firm strives to balance a commitment to innovative research and development goals with direct application to problems in the field. The experience and education of their professional and support staff provides a strong capability for handling difficult and challenging material and structural engineering problems. Through ongoing research and practice, the firm has established itself as one of the foremost international authorities on both historic and modern masonry structural systems.

    Atkinson-Noland & Associates provides forensic engineering services for the evaluation and condition assessment of existing and new structures. Their expertise in support of forensic studies, includes evaluation of structural distress and failure, establishment of causes, recommendations for remedial action, and litigation support. Several ANA engineers have extensive experience in providing expert services in a variety of construction litigation areas.

    Litigation Support Experience:
    • Masonry Expertise
    • Waterproofing / Moisture Intrusion
    • Brick and Concrete Masonry
    • Cast Stone and Reinforced Concrete
    • Adhered Veneer
    • Slip-Fall Claims
  • Cracking and Spalling
  • Structural Failure Analysis
  • Metal Corrosion
  • Material Durability and Defects
  • Differential Foundation Movement
  • Design Standard of Care
  • ANA prepares high-quality expert reports, and we have experience in deposition and courtroom testimony.

    View Atkinson Noland's Consulting Profile.
    10/14/2014 · Construction
    Atkinson-Noland & Associates worked with Bridge Diagnostic, Inc. to evaluate the performance of the historic Ames Street Bridge in Dedham, Massachusetts during the strengthening phase of the structure. Live load tests were conducted on the bridge before and after strengthening to evaluate the efficiency of the selected rehabilitation method. Displacement and strain were monitored at several critical locations along the arch barrels using Linear Variable Differential Transformer (LVDT) displacement sensors and surface - mount strain transducers. A finite element study was performed to understand the complex behavior of the multi-span masonry arch bridge. A long-term monitoring system was installed to evaluate the bridge behavior over time

    8/27/2014 · Construction
    The church was built in 1917 of concrete masonry blocks that were reportedly cast on site by members of the church. The main problem with the church exterior is the delamination of the exterior skin of the concrete block.

    7/22/2014 · Construction
    Constructed in 1934, the "Old Senior Hall" building was built with a structural steel frame, concrete and gypsteel floors and roof, and a reinforced concrete foundation. The exterior walls were built using a brick masonry façade over a clay tile backup with limestone sills, coping, and accents. Active corrosion of main structural members was discovered in the late 1990's, and a plan was developed to renovate the building to address structural concerns. Atkinson - Noland conducted a full exterior condition survey, including use of nondestructive tests to identify the extent of steel corrosion, evaluate masonry performance, and identify potential repair items. Results of this study were used to plan repairs and any necessary strengthening.

    6/10/2014 · Engineering
    The Health Center building on the Milton Hershey School campus was designed in 1932 as load-bearing masonry construction with steel framing used to support floor and roof loads and loose steel lintels spanning over window and door openings. Atkinson-Noland & Associates was retained to conduct an investigation of the exterior load-bearing masonry walls and structural steel framing for the purpose of identifying typical as-built conditions as well as the locations and severity of any deterioration.

    The 16th Street Mall in downtown Denver, Colorado is a pedestrian and transit mall that extends for more than a mile along 16th Street connecting people to major businesses, hotels, restaurants, and retail. Recently, the street mall pavers have experienced a substantial number of loose and cracked granite pavers. Atkinson-Noland & Associates conducted an extensive investigation at the 16th Street Mall granite tile pavers to determine the causes of distress in the paving system. We also helped develop appropriate solutions to paver debonding, slip-resistance, aesthetics, and maintenance.

    4/4/2014 · Construction
    Atkinson-Noland & Associates was a principal investigator on a three-year project evaluating different techniques for repair and retrofit of unreinforced masonry structures. Old masonry construction was simulated in the laboratory, and the test specimens were strengthened by installation of internal reinforcement or repaired by grout injection.

    2/26/2014 · Construction
    A six-story condominium building was constructed using load-bearing, concrete masonry with a clay brick masonry veneer. Specifications required that the collar joint be filled during construction; however, the contractor built the masonry without grouting the collar joint. Subsequent negotiation determined that the masonry must be reconstructed with a filled collar joint.

    1/23/2014 · Materials
    Right: Construction began on the Piedras Blancas Light Station in 1874. The site now includes two of the original historic structures-a lighthouse building completed in 1875 and a fog signal building completed in 1906. The lighthouse building was originally 115 feet tall, including a first-order Fresnel lens manufactured in Paris, France.

    12/17/2013 · Materials
    A two-story masonry building in the historical district of Cripple Creek, Colorado was assessed to determine its present condition. The building was to be retrofitted as a casino but was suffering from over 100 years of weathering in a severe climate and recent neglect.

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    Keith M. Cianfrani, MAS, CRSP
    Aviation Safety Consultant
    350 New Britain Road
    Doylestown PA 18901
    USA
    phone: 215-348-3942 (Office) or 267-377-5364 (Cell)
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    Keith M. Cianfrani, MAS, CRSP, a retired U.S. Army Lieutenant Colonel, the founder and owner, has over 30 years of aviation experience. He is a master army aviator, aviation safety officer, commercial pilot, instructor pilot, and was an accident investigator for the U.S. Army Safety Center.

    Background - Mr. Cianfrani is rated in both rotary wing and fixed wing aircraft. As a safety officer, he has managed safety programs in organizations with over 100 aircraft stationed throughout 5 states. Mr. Cianfrani is currently an instructor for Embry Riddle Aeronautical University and Kansas State University. He is also presently attending Florida Institute of Technology (FIT) as a PhD Student in Aviation Science.

    Mr. Cianfrani is a certified Flight Instructor (CFI) and has also worked in the civilian, commercial aviation industry. He has been flying for companies such as Petroleum Helicopters, Damin Aviation, Keystone Helicopters, Island Helicopters, and Chopper 6 and Chopper 3 in Philadelphia. He also has experience in the flight for life, aero medical evacuation industry.

    Litigation Support - Keith Cianfrani specializes in Human Factors and Material Failure in Aviation Accident Investigations. He serves as an aviation safety consultant for the Federal Aviation Administration and FIT. An IS-BAO Certified Safety Auditor, he provides safety evaluations in accordance with Federal Aviation Regulations. His services are available nationally and internationally and include written reports, depositions, and trial testimony as needed.

    Areas of Expertise:
    • Pilot / Crew Performance
    • Human Factors
    • Maintenance
    • Environmental Factors
    • Meteorological Factors
  • Safety Training
  • Material Factors
  • Aviation Accident Reconstruction
  • FAA Regulatory Compliance
  • Safety Audits
  • View Keith Cianfrani's Consulting Profile.
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    Iola Goeke
    3660 Hartsfield Road
    Tallahassee, FL 32303

    USA
    phone: 850-558-3100
    fax: 850-575-8454
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    BEC Consulting, LLC was established in 1982. Since that time, we have provided top-level consulting engineering services and accident reconstruction to our clients; law firms, insurance companies, state and local agencies, manufacturing companies, and clients who are seeking product design analysis and other engineering related services.

    Our engineers represent a broad range of engineering disciplines which enables us to work on a variety of cases using the team approach. The teams at BEC are comprised of Engineers, Technical Specialists, Graphics Specialists, as well as Research and Administrative Personnel, so that each case is given personal attention and is handled efficiently and effectively. Our offices are located in Tallahassee, Jacksonville and Venice working in almost every state in the United States, including Alaska.

    Areas of Expertise:
    • All Areas of Accident Reconstruction - Including Automobile, Tractor-Trailer, Motorcycle/Bicycle & Pedestrian
    • Engineering Consulting
    • FARO 3-D Scanning
    • Black Box Downloads
    • Construction Zone / Roadside Safety
    • Industrial Equipment
    • Failure Analysis
    • Product Design
    • Product Development
    • Material Handling System
    • Biomechanical Analysis
    • Slip / Trip / Fall
    • Computer Animation, Electronic Graphics
    Every aspect of our firm is designed to serve our clients needs; conference rooms for mediations and depositions, a research and testing lab, secured evidence storage, facilities for expert inspections, and easy access to airport and hotel facilities for our out-of-town clients. We are truly a full service engineering firm.

    Because of this team approach and a commitment to customer service, BEC has attained regional and national recognition as a leader in forensic engineering services and new product development. This excellent example and tireless dedication to serving our client’s needs has resulted in a devoted client base and reputation second to none.

    Dr. Charles Benedict, P.E., founded Benedict Engineering Company in 1982 and our name has since changed to BEC Consulting, LLC. He has over 35 years experience in the fields of product and machine design and analysis, vehicular accident reconstruction of all types, and product and system failure analysis. He has designed, developed, manufactured, and tested more than sixty different products and machine systems. Dr. Benedict is well respected in the fields of forensic engineering, product and machine system design and analysis and patenting.

    Expertise:
    • Biomechanics
    • Occupant Kinematics
    • Vehicle Restraint Systems
    • Vehicle Controllability
    • Material Handling
    • Patent Infringement
  • Automobile Accidents
  • Pedestrian Accidents
  • General Engineering
  • Product Design
  • Fire and Explosion Analysis
  • Tractor / Trailer Accidents
  • Electrical Issues
  • Dr. Brian Pfeifer, P.E., is also a principal with BEC Consulting, LLC, and has been practicing forensic engineering for over 15 years. He holds several patents on roadside safety devices and studied roadside safety at the University of Nebraska. He is a consulting engineer with a strong background in the design, development, and implementation of roadside safety hardware. His current work consists of vehicular accident reconstruction, analysis of maintenance of traffic issues, premises liability, investigation and analysis of mechanical systems and product failures, and development of automated material-handling systems.

    Expertise:
    • Roadside Hazards
    • Vehicle Controllability
    • Occupant Kinematics
    • Roadway Design
    • Guardrails and Bridges
    • Maintenance of Traffic
    • Roadway Design
  • Automobile Accidents
  • Pedestrian Accidents
  • Tractor / Trailer Accidents
  • Slip / Trip / Fall
  • Product Design
  • General Engineering
  • Mrs. Traci Campbell, P.E., CXLT, is an Industrial engineer with specialties in industrial accident reconstruction, including forklifts, construction machinery, appliances, and manufacturing equipment. Her experience includes vehicular accident reconstruction involving automobiles, trucks, tractor-trailers, and recreational vehicles, as well as slip, trip, and fall analysis, product failure analysis, and workplace-safety related issues.

    Expertise:
    • Industrial Accidents
    • Safety Analysis
    • Product Design / Failure Analysis
    • Slip / Trip / Fall
    • Guarding / Warnings
    • Workplace Safety
    • Bicycle Accidents
    • Confined Spaces
  • OSHA Regulations
  • Pedestrian Accidents
  • Automobile Accidents
  • Tractor / Trailer Accidents
  • Human and Environment Interaction
  • Theme Parks / Recreation Facilities
  • Airbag and Black Box
  • General Engineering
  • Mr. Chris Yates, P.E., is a Mechanical engineer and Principal with our firm, specializing in accident reconstruction. His current work involves the analysis and reconstruction of vehicular accidents, including vehicular dynamics and occupant restraint as well as the investigation of industrial accidents and product analysis.

    Expertise:
    • Black Box Analysis
    • Motorcycle / Bicycle Accidents
    • Mechanical Design
    • Product Guarding Design
    • Fire and Explosion
    • Seat Belt Analysis
  • Automobile Accidents
  • Pedestrian Accidents
  • General Engineering
  • Product Design
  • Tractor / Trailer Accidents
  • Slip / Trip / Fall
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    Frederick Passman
    President
    PO Box 3659
    Princeton NJ 08543-3659
    USA
    phone: 609-716-0200
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    Dr. Frederick Passman, PhD is a Certified Metalworking Fluids Specialist with over 35 years experience in Environmental & Industrial Microbiology. His company, Biodeterioration Control Associates, Inc. (BCA) provides clients with unparalleled expertise in Microbial Contamination Control.

    Dr. Passman offers a complete range of consulting services relating to microbial contamination control in the metalworking, fuel, petroleum production and water treatment (heat exchange) industries.

    Areas of Expertise:
    • Industrial microbial ecology
    • Root cause analysis of microbial contamination
    • Industrial process system biodeterioration
    • Microbially influenced corrosion
    • Health effects of exposure to bioaerosols in the industrial environment
    View Consulting Profile.
    6/3/2014 · Microbiology
    Despite their history of successful use as fuel system disinfectants and fuel preservatives, antimicrobial pesticide use faces increasing restrictions due to both regulatory control and public concerns. A variety of non-chemical treatments have been used with varying degrees of success to disinfect non-fuel fluids and to at least partially inhibit biofilm development on infrastructure surfaces. Promoters of one technology have claimed successful fuel disinfection and fuel-tank fouling prevention. This paper will review a range of non-chemical treatment technologies and will present the results of preliminary evaluations of several technologies that were tested on Jet A fuels that had been challenged with either Pseudomonas aeruginosa or Hormoconis resinae. Data are presented on treatment impact on adenosine triphosphate (ATP) concentration, culturability and live/dead direct counts in Jet A-1 and on glass microcosm surfaces.

    4/29/2014 · Microbiology
    Several of the major points that I made in 1995 need further consideration, based on both changes in the regulatory climate and field experience with microbial contamination control in surface transportation markets.

    3/25/2014 · Microbiology
    Smaller retailers depend on the expertise and reputations of their suppliers. Traditionally, refiners' attitudes about fuel were that if it met specifications at the time of sales, but failed later, the problem belonged to the owner at that time. As we begin to see impact of the Clean Air Act-driven fuel reformulations, increased consumer awareness and increased susceptibility to contamination, all market participants are going to have to cooperate to ensure that the customer with the engines gets consistently good fuel.

    2/20/2014 · Metallurgy
    Adenosine triphosphate (ATP) assays have been used to quantify bioburdens (biomass) in low-organic-compoundcontent fluids (freshwater, seawater, cooling tower water, and similar fluids) since the early 1950s. The original methodology was labor intensive and required considerable laboratory skill. Over the past half-century, the protocol has been simplified substantially, but until recently, chemical interferences made it impractical to use the ATP test in metalworking fluids (MWF).

    1/17/2014 · Microbiology
    Quantification of adenosine triphosphate (ATP) in fuels and fuel-associated waters was first presented at the Technische Akademie Esslingen 6th International Fuels Colloquium in 2007. At the time, two issues limited the overall usefulness of ATP as a test parameter: inability to differentiate between bacteria and fungi and inability to detect dormant microbes.

    12/11/2013 · Microbiology
    Three alternative, non-conventional test methods are evaluated for their ability to detect and quantify bioburdens in fuel and bottom-water samples. Two of the parameters, catalase activity and adenosine triphosphate (ATP) concentration have been used previously. This is the first report of the use of fluorescence polarization (FP) technology for fuel and fuel-associated water testing.

    11/6/2013 · Microbiology
    In August, 2012 a member of the LinkedIn Metalworking Fluids Group asked for a recommendation for the best biocide/fungicide package to be used to protect a semisynthetic metalworking fluid from biodeterioration. His posting has generated nearly 50 responses. Some of the suggestions were clearly based on limited experience; experience with few MWF, a limited number of MWF systems or both. I posted a number of comments to the string and have compiled them in this article.

    10/9/2013 · Microbiology
    Industrial lubricants are increasingly providing a rich environment for microbial growth and proliferation. Most of the knowledge of lubricant biodeterioration has been extrapolated from field and laboratory experience with metalworking fluids. Compositionally more complex than most lubricants, metalworking fluids are either solutions or emulsions of 5 to 10% coolant concentrate in water.

    9/10/2013 · Microbiology
    As industry seeks to improve the economy of plant operation, responsible managers are paying more attention to factors that affect efficient and reliable operation of their facilities. One area of attention that can payoff handsomely is the control of microbiological activity in coolant systems. Many engineers and plant operations personnel are just beginning to appreciate the effects on their machining operations caused by their plant "biosphere," which contains bacteria, fungus, mold and other contaminants.

    8/14/2013 · Microbiology
    Mounting concerns over operational and waste management costs, as well as the quality and safety of the work environment have provided increased impetus for both formulators and end-users to strive to improve coolant life. There are a number of alterative approaches to achieving this objective. In this paper, the concepts of bioresistance and biostatic are defined and compared.

    7/29/2013 · Microbiology
    This case study reports culture and acid-fast bacteria direct counts from 99 MWF samples received for microbiological testing at Warren, Mich.-based Biosan Laboratories between December 2006 and September 2007.

    7/11/2013 · Microbiology
    All metalworking-fluid formulations share the common problem of susceptibility to microbial attack. This is not all bad news, since we need the used dilute fluid to be biodegradable for disposal purposes.

    6/19/2013 · Microbiology
    During the past decade we have witnessed a tumultuous debate over the disease risks posed by microbes that inhabit metalworking fluid (MWF) systems. Not infrequently, that debate has occurred in the absence of satisfactory data.

    5/22/2013 · Microbiology
    Root cause analysis is the process used to identify the fundamental cause for an undesirable condition. Premature filter failure due either to plugging or other mechanism is generally perceived to be an acute problem.

    4/10/2013 · Microbiology
    Since there are no microbial standard for the fuels, microbial contamination remained undetected inless sli9me started to plug the filters.

    3/7/2013 · Fuel Systems
    An array of microcosms containing California Air Resources Board (CARB)-compliant, oxygenated S7-octane gasoline over nutrient-amended water was monitored over a 7-month period. The array included tiplicate microcosms of each of four conditions:

    2/15/2013 · Fuel Systems
    Microbes in Fuel Retailing was the last in my series of NPN articles. In it, I presented a more global perspective on the key issues that I had addressed in earlier articles. Since 1999 there have been some watershed changes in the industry since it was written. The most important ones all involve dramatic changes in fuel product composition.

    12/12/2012 · Fuel Systems
    Although the documentation of fuel biodeterioration dates back to the late 19th century, general recognition of the value of microbial contamination control evolved slowly until the 1980's. Since the early 1980's a number of factors have converged to stimulate greater interest in fuel and fuel system biodeterioration.

    10/5/2012 · Fuel Systems
    Adenosine Triphosphate (ATP) is an excellent biomarker present in all living cells. During the past several years, several ATP test methods have been developed to overcome interferences that have historically made ATP testing of fuels impractical.

    7/26/2012 · Microbiology
    Metalworking fluids provide an excellent environment for the growth and proliferation of a variety of bacteria and fungi. Historically, the incidence of infectious disease outbreaks at metalworking facilities has been rare. Consequently the primary focus of microbial contamination control efforts has been to prevent fluid biodeterioration.

    5/21/2012 · Fuel Systems
    Between 1994 and 1999, I had the opportunity to write a series of articles for National Petroleum News (NPN). Each article focused on one aspect of the connection between microbial contamination and operational problems in fuel retail systems.

    Frederick J. Passman, PhD
    This new ASTM manual brings together the various test procedures that technicians need to diagnose the contamination in fuels and fuel systems. It also suggests the means for detection and control of microbial contamination.
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    Helmut G. Brosz
    President & C.E.O
    See Website for USA Office Address
    64 Bullock Drive
    Markham Ontario L3P 3P2
    CAN
    phone: 905-472-6660
    fax: 905-472-6665
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    Brosz & Associates are Electrical Experts headed by President and C.E.O., Professor Helmut G. Brosz, B.A.Sc., D.B.A., F.A.A.F.S., P. ENG., Adjunct Professor at Ryerson University, Adjunct Assistant Professor at University of Toronto.

    They provide a wide range of highly specialized Forensic Science and Engineering, Accident Reconstruction, Testing, Commissioning, and Technical and Scientific Services. Their staff of specialists and experts have completed over 5,200 assignments since 1970 ranging from electrical accidents and electrocutions to electrical power system investigation and testing of equipment failures including circuit breakers, motors, switchgear, generators, transformers and appliances.

    Their engineering facilities at Brosz & Associates enables them to perform in-depth research, electrical testing, forensic laboratory testing, microscopy, macro photography and photographic documentation, X-Ray testing, infrared testing, high voltage testing, high current testing and more. Most of their testing equipment is portable and they are also capable of producing professional collages and scale models for reports, mediations, depositions and trial.

    Their clients include insurance companies, legal firms, adjusters, risk managers, manufacturers, contractors, utilities, governments and individuals.

    Services Include:
  • Cause and Origin Investigations
  • Failure Analysis
  • Loss Prevention and Mitigation
  • Subrogation Support for the Insurance Industry
  • Electrical Safety and Accident Prevention
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    David Neagley, AIA, Architect
    Forensic Architect
    PO Box 2265
    La Jolla CA 92038
    USA
    phone: 858-354-8070
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    David Neagley Forensic Architecture Expert PhotoDavid Neagley, AIA, Architect: Over thirty-two years of architectural design and construction administration experience with all building types, including educational, medical, R&D, corporate, commercial, custom residential, multi-family housing, military and industrial projects, totaling over 12.4 million square feet. Emphasizing use of durable, low maintenance materials including stainless, copper, bronze, zinc, cement-fiber, plastics, composites, specialty sealants & industrial paints.

    Building Reconstruction Specialist: Reconstruction design, details and specifications focused on solving complex construction problems and developing effective repairs for commercial and institutional buildings. Services include design for waterproofing, flashing, exterior finishes, roofs, decks, windows, and remediation of mold, wood rot, corrosion and structural damage.

    Construction Industry Expert: Visual inspection, intrusive testing, defect analysis, repair recommendations and forensic expert services for both plaintiff and defense parties. Specialized knowledge of construction materials, industry standards, code compliance, waterproofing, vapor transmission, exterior finishes, corrosion, condensation, ventilation, mold, wood rot, suspended ceilings, interior partitions, and structural issues.
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    Leighton Spadone, President
    Tire Technology & Data Analytics
    14617 Cedar Road
    Beachwood OH 44122
    USA
    phone: 440-264-3638
    fax: 216-291-2823
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    Leighton Spadone Tire Technology Expert PhotoLeighton Spadone, President of DAAS Inc., has over 50 years of Tire Technology and Applied Statistics experience. He trains and consults tire companies on Tire Design, Tire Materials and Compound Formulations, Tire Curing, rubber processing, quality control, tire, compound, and materials testing.

    Mr. Spadone was employed by Goodyear Tire & Rubber Co in International Technical Service and Domestic Tire Development for over 43 years and by Eurotire Inc for 6 years as the Chief Technical Officer. he is an experienced Materials Product Developer for Radial Light Truck Tires, Radial Medium Truck Tires, Farm Tires, and Off-Road Radial Earthmover Tires.

    Mr. Spadone has authored numerous tire technology conference papers for the ACS Rubber Division, ITEC, and JMP Discovery including Truck & Passenger Tire Testing, Treadwear prediction, Rubber Mixing, and Earthmover TMPH. Articles have been published in Rubber and Plastics News and The Quality Digest. He has specialized training in Statistics, 6-Sigma, Technical Management, and SAS & JMP statistics and programming.

    Regression Model to Predict Tire Performance: Paired Design Experiment

    Litigation Support - Leighton Spadone provides expert witness services for attorneys representing both plaintiff and defendant. He uses engineering experience and data supported statistical approaches to support expert witness testimonies, problem solving, and troubleshooting.

    Areas of Expertise:
    • Tire Development
    • Tire Materials Testing
    • Tire Performance
    • Tire Failure Analysis
    • Tire Formulations
    • Tire Design
    • Rubber Processing
    • Tire Manufacturing
  • Tire Vulcanization
  • Giant Earthmover Tires
  • Farm Tires
  • Truck Tires
  • Passenger Tires
  • Tire Retreading
  • Mining Tire Operations
  • Tire Defects
  • View Leighton Spadone's Consulting Profile.
    This is a personal injury case in which a car windshield was smashed and the driver injured by a tire that "came off" a truck that the car was following on a high-speed interstate highway. The car driver was hospitalized and the car towed. The truck had one of its rear tires replaced and then departed the scene of the accident.

    A London based arbitration process for breach of a contract to purchase tires brought by an International Earthmover Tire Manufacturer, plaintiff, against an International Mining Company, defendant. The Mining Company contractually agreed to order a specified number of tires or to pay 40% of the agreed selling price for any tires not ordered. This is referred to as a “Take or Pay” arrangement. The tire manufacturer contracted to produce tires that met the Tire and Rim Association OTR Handbook standards. The manufacturer did not guarantee tire performance, in terms of any performance measure.

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    L. Peter Petrovsky, PE, CE, ME
    31157 Lobo Vista Road
    Agoura CA 91301
    USA
    phone: (818) 489-4400
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    Peter Petrovsky, PE, CE, ME , has provided services as a consultant and an expert witness in applied Civil and Mechanical Engineering Science, Building, Infrastructure, and Earthwork Contracting. His strength and experience is to successfully combine engineering and applied mechanics with the field experience and contracting skills.

    He packages civil, mechanical engineering, as well as, general, engineering, earthwork and paving and hazardous waste contracting into one package for the use of his clients. His services also include construction job site safety in fire prevention and personnel protection.

    Litigation Support - Mr. Petrovsky's shirtsleeve approach to problem solving gives him the ability to distill complex technical issues to a palatable presentation in the appropriate forum. Serving the legal industry for 25 years, he has been retained in over 600 plaintiff and defense cases, been deposed over 200 times, and given testimony approximately 100 times.

    Mr. Petrovsky's services include testing and analysis, trial preparation case analysis, deposition review and expert summary, evidence presentation, consulting, report writing, court exhibits, static and computer depictions, construction and engineering contract analysis, accident reconstruction, and interpretation of administrative regulations. He has assisted counsel on cases in California, New York, Indiana, Pennsylvania, Hawaii, Kentucky, and Nevada.

    Areas of Expertise:
    • Mechanical Engineering and Mechanical Design: Machine safety and guarding, Strength of materials, wood, metals, plastics
    • Materials Issues and Failure Analysis: Mechanisms, components and machinery; Pressure testing, fatigue analysis
    • Accident Investigations: Heavy equipment accidents, bulldozers, backhoes, excavators; Cranes, lifts, manipulators
    • Air conditioning and Refrigeration: Thermography services and analysis
    • Civil Engineering: Design of Buildings; Residential, industrial, commercial site plans; Land development, site preparation and paving, drilling and boring; Public and private roadways, sidewalks, ramps, parking lots, lighting; Septic systems, sewers, public sewer blockage and stoppage; Scaffolds & scaffolding erection and accidents; Retaining walls and retaining wall failure; Foundation failure / structural damage; Plumbing leaks, water intrusion, explosions; Earthquake Damage Assessment and Remediation; Construction Disputes / Insurance claims; Stucco defects and failures; Job site fire prevention industry standards
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    Gerald O. Davis, PE
    4723 Squaw Valley Court
    Glen Allen, VA
    23060
    VA, DC, MD, WV, NC USA
    phone: 804-967-9129
    fax: 804-967-9130
    jerry-davis-photo.jpg
    Gerald O. Davis, PE, President and co-owner of DM&ME, has over 40 years experience in Metallurgy and Mechanical Engineering. Mr. Davis is a Forensic Expert in Metallurgy, Corrosion, Mechanical Failures, & Root-Cause Failure Analysis. His recent background includes work as a corrosion researcher, senior engineer, and program manager for Battelle Memorial Institute, DNV, Inc., Henkels & McCoy, Inc., respectively and, since 2004, as president of DM&ME.

    Mr. Davis has been offering Expert Witness Services for the past 12 years for product liability and personal injury evaluations. He is retained for his knowledge of Forensic Engineering and Root-Cause Failure Analysis. Mr. Davis is experienced with depositions and trial testimony. His services include specification and interpretation of metallurgical lab tests, review of mechanical failures and review of physical evidence and its meaning. His findings are presented in clear oral and written reports which he provides to judges and juries in non-technical language.

    Areas of Expertise:
    • Metallurgy
    • Laboratory Testing and Interpretation
    • Corrosion Analysis & Control Methods
    • Mechanical Design Analysis
    View Consulting Profile.
    11/16/2015 · Corrosion
    A common cause of failures in various types of equipment is fatigue failure of bolts that secure parts together. Fatigue in any type of dynamically loaded mechanical component accounts for more than 80% of all failures. This post reviews some important factors in fatigue failure of metallic bolts.

    The working relationship between the attorney and their expert witness in a case can be more effective if a few simple guidelines are followed. These are common sense things but one or more can be overlooked in the frequent day-to-day rush that busy attorneys face. When that happens some of the potential contributions from the expert may be compromised or lost to the detriment of the attorney's client.

    6/30/2015 · Engineering
    Too frequently an attorney will begin to seek a potential expert witness only after having done considerable initial work. Often there is a last minute rush to locate and select specialized technical assistance. These approaches can have expensive consequences. Alternatively, securing a suitable expert early in the litigation process offers the following advantages for the retaining attorney:

    6/2/2015 · Engineering
    Many negative consequences can result from failures of a range of different products that often lead to property & casualty insurance disputes or product liability legal actions. The products may include consumer or industrial goods. Typically the private user or worker is injured or a business incurs significant financial loss. The injured individual, insurance carrier, attorney(s) or industrial manufacturer and user are all interested to confirm what went wrong – and who is liable. Resolution often depends on engineering analysis.

    5/7/2015 · Corrosion
    Clearly it is advantageous to know when corrosion is occurring in operating equipment to avoid future failure. There is extensive literature on this topic. This post is a brief summary of information selected from the four references cited below. Each source includes several other references.

    4/7/2015 · Manufacturing
    "3D printing" or the more descriptive term - additive manufacturing (AM) - has received much publicity in recent years. What is this technology and what are some of its practical features? This blog is a summary of AM and its on-going development to make actual service components using metal alloys. Presented are selected portions of information provided in the two references cited.

    3/3/2015 · Corrosion
    Most engineers know about the danger of galvanic corrosion caused by physical contact between dissimilar metals exposed to a corrosive liquid. However, this possibility is often overlooked and other features of this type of corrosion may not be widely known.

    1/21/2015 · Failure Analysis
    It is essential when beginning a root-cause failure analysis involving metallic materials to collect and maintain the as-found physical evidence properly prior to detailed examinations. This has two objectives. In all cases collecting and protecting the evidence in its undisturbed condition provides the best opportunity to derive meaningful good results from the subsequent analyses. Secondly, in a legal proceeding lack of attention to these matters can produce the accusation of spoilation of evidence. As a minimum this will cause presentation problems for the offending party in the suit. At worst such deficiencies by that party may cause the case to be thrown out.

    12/12/2014 · Corrosion
    Aluminum alloy materials are well known for their light weight and strength-to-weight ratios. They are also susceptible to several forms of corrosion. Relative to other metals, their natural electrochemical potential places them adjacent to other very susceptible (active) metals such as magnesium (Mg) and zinc (Zn) in a traditional galvanic series in seawater. However, Al alloys naturally form a very thin, protective (passive) oxide film on their surface when exposed to oxygen. This film prevents corrosion as long as it is maintained over the surface. Pitting corrosion is a common form of attack on aluminum. This is typically caused by exposure to halide ions, chloride ions being the most common type found in corrosive media, that breakdown the passive film at discreet spots. This permits pits to initiate and grow.

    11/7/2014 · Metallurgy
    Often when engineers consider mechanical fatigue they envision cyclic, reversing stresses in a spinning shaft or possibly the up and down flex of aircraft wings. Rolling contact fatigue (RCF) or the associated mechanical wear is an important, closely related process to the traditional mechanism of fatigue but with distinct differences. RCF is also often known as spalling.

    9/25/2014 · Product Liability
    This term raises some vital issues that the engineer should be aware of when using it. First several definitions are available and thus it is perceived differently by different groups and individuals. From a legal standpoint, in many states, using the term to describe a product that was involved in an incident involving an injury means that the designer or manufacturer of that product may be financially liable for the injury. Engineers sometimes use the term simply to indicate an imperfection in a product without intending its frequent legal use. Further the engineer realizes that no material and no finished product is perfect. However, these variations from perfection do not necessarily mean they were cause for failure and thus the injury that may occur in a given incident. Some product liability attorneys may not readily acknowledge or understand this distinction.

    8/21/2014 · Corrosion
    The optimal time to make decisions and take actions to minimize potential failures of equipment, facilities and components is during their design. This two-part blog post provides an overview of the types of issues involved and specific actions that can be useful to the design engineer. Archived blog posts (at www.dmme-engineering.com) that discuss specifics are provided parenthetically.

    7/15/2014 · Metallurgy
    Four, tri-lobe pumps were damaged and required extensive repair during the latter stages of construction for a modification in a pharmaceutical manufacturing plant. The economic loss was significant and the general contractor for the work paid the plant's owner for the loss. The renovated units were installed and are in use. However, the general contractor then sued one of its subcontractors - a welding contractor that fabricated and completed weld joints between piping sections on the inlet side of the pumps. The general contractor claimed poor quality welds in the piping permitted loosened weld fragments to enter the pumps during the required water flow verification of the system and this caused the damage.

    6/9/2014 · Corrosion
    Most realize that damage due to corrosion of metals is costly - but what specifically is that cost and what is included in the total? A study completed in 2002 sponsored by the Federal Highway Administration (FHWA), the National Association of Corrosion Engineers (NACE International) and implemented by CC Technologies Laboratories (now part of DVN) addressed those questions.

    5/2/2014 · Corrosion
    Material selection entails picking an engineering material - either metal alloy or non-metal - that is inherently resistant to the particular corrosive environment and also meets other criteria. Variables that will affect corrosion are established along with materials that may provide suitable resistance for those conditions. Obviously other requirements such as cost and mechanical properties of the potential materials must be considered.

    3/28/2014 · Corrosion
    Pin-hole leaks from a fire-control sprinkler piping system just above the false ceiling of multiple rooms in an office building resulted in a suit against three parties involved with supplying the system. The plaintiff - a financial service organization that owned the building - had much computerized transaction data stored on magnetic tapes in several rooms damaged or destroyed by the incident. The monetary loss was major. The leaks occurred within two years after the system was installed. This period is clearly far short of the expected life of the system. Defendants in the case included the supplier of the piping used in the system, the engineering firm that designed it and the installation contractor.

    2/26/2014 · Corrosion
    A variety of low-voltage electronic devices may fail to operate properly because of exposure to certain corrosive, gaseous environments. Susceptible items include consumer products such as microwave ovens, audio equipment, TV's and personal computers as well as many types of industrial sensors and automatic control devices. Failure generally occurs because of specific application factors. These include the severity of the environment, the presence or absence of atmospheric sealing of components within the device and the metals used at critical internal locations. Frequently complete failure doesn't occur but normal operation is erratic.

    A full size, cylindrical tank trailer pulled by a truck tractor/ cab split open on its lower section at mid-span and released hundreds of gallons of hydrochloric acid (HCl) onto a secondary highway in a northeastern state. When this occurred the truck driver jumped out of the truck's cab and sustained acid burns to his ankles because he was wearing low-quarter shoes.

    12/20/2013 · Failure Analysis
    A severe personal injury incident occurred as a recreational fishing boat was approaching a dock at approximately 20 mph after a day on the water. The large outboard engine (75 HP) on the stern of the boat struck a fixed underwater obstruction, flipped into the boat while still running and amputated the hand of a passenger seated near the engine.

    11/26/2013 · Engineering
    A licensed professional engineer (P.E.) is required to adhere to a Code of Ethics for Engineers in all work he undertakes. However, there are some special criteria when employed as an expert witness.

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    Kevin Abell
    Marketing Director
    Corporate Headquarters
    11321 Plantside Drive
    Louisville KY 40299
    USA
    phone: 800-482-5611
    fax: 502-267-6973
    donan_logo.jpg
    Donan, a family owned company founded in 1947, provides full-service Forensic Engineering and Fire Investigation Services. For over 60 years, Donan Engineering has been providing unbiased answers to their client’s complicated questions. Their team of licensed and experienced forensic experts provides investigative services in the fields of engineering investigations, fire and explosion origin & cause, roofing investigations, and component testing. The diversity of their multidisciplinary staff allows them to provide not only a complete service, but a complete service whose conclusions can be successfully and completely supported.

    Donan Engineering has become a richly diverse, industry leader with over 250 employees operating from 50 offices in 27 states including Alabama, Arkansas, Florida, Indiana, Illinois, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Mississippi, Minnesota, Missouri, Nebraska, Ohio, Tennessee, Wisconsin, Georgia, North Carolina, South Carolina, Pennsylvania, Louisiana, Texas, West Virginia, Virginia, and Oklahoma. Throughout their growth, Donan has maintained their commitment to providing exceptional customer service, unparalleled quality, unmatched integrity, and timely reporting. Most importantly, they pride ourselves on delivering their clients quality services at an affordable price.

    Services Include:
    Engineering Investigations
  • Bridges
  • Foundations and Basements
  • Geotechnical / Sink Holes
  • Lightning
  • Low and High Voltage
  • Mechanical Systems
  • Retaining Walls
  • Steel Construction
  • Trusses
  • Vehicle Mechanical Studies
  • Vibrations: Earthquakes and Blastings
  • Water Infiltration / Mold
  • Wood Frame Construction

  • Fire / Explosion Origin and Cause
  • Commercial Fires
  • Equipment Fires
  • Vehicle / Residential Fires

  • Roofing Investigations
  • Commercial
  • Residential - Asphalt Shingle
  • Residential - Slate, Tile, Etc.

  • Heavy Trucks
  • Motorcycles
  • Passenger Vehicles
  • A fire investigation at the end of a long day was a perfect illustration of staying open to potential causes, and, a reminder that sometimes discovering the origin and cause of a fire is a life-saving endeavor when it prevents future dangers.

    8/21/2017 · Engineering
    Does this sound familiar? The chimney is leaning and separating from the house. You observe separation between the chimney and the house that increases in width with height (i.e., there is no separation at the bottom and there is upwards of 2 inches of separation at the roofline) (Figure 1). The heavy self-weight of the chimney comprised of masonry components is prone to rotating away from the house due to settlement of the underlying soils. Further, due to the height of the chimney, a relatively small rotation of the chimney foundation could result in a significant separation toward the top of the chimney. Most commonly and rightfully so, the cause of the chimney displacement is settlement of the underlying soils supporting the chimney foundation.

    7/20/2017 · Construction
    Commonly called "flat roofs," most commercial buildings are actually clad with roof systems that provide about 1/8 to ¼ inch per foot of positive drainage. These roof systems are constructed differently than most steep-slope roof coverings and are typically watertight rather than water-shedding assemblies.

    6/27/2017 · Finance
    A recent Donan forensic fire investigation found that a poor connection in a floor-mounted duplex receptacle was the cause of fire. The receptacle was located in the area of origin and all other identifiable causes were eliminated during the investigation. While conducting the research for this particular case, Donan investigators evaluated many scholarly sources in order to clearly educate the client on how a loose connection in a receptacle could lead to a structure fire which, in this case, nearly consumed the bedroom. The best explanation was found in the chemistry associated with the formation of an oxide that contributes to the condition.

    Over the past several years, there has been a clear trend of phasing out "dry-charge" air conditioners and heat pumps. What happened, why are some contractors still selling them, and what are the current common repair/replace options? Read this insightful article for everything you need to know on the topic.

    12/2/2016 · Engineering
    The term plumbing is derived from the Latin word "plumbum," the name of the metal lead that was the preferred material used by the Romans to construct their empire's water supply systems. This bit of history is even relevant today as the continued use of this potentially toxic metal has made headlines because of recently exposed problems in the Flint, Mich., water supply.

    7/29/2016 · Forensics
    Most forensic investigation projects include a scope to determine the cause of some damage or condition. Project scopes often request determining the cause and origin of the damage. Since insurance policies contain descriptions of covered and non-covered situations, clearly specifying causes and origins is crucial for clients' coverage decisions. This article discusses the differences between and significance of these two important terms.

    4/18/2016 · Construction
    Brick masonry chimneys have been prevalent for centuries, but it wasnt until recent decades that brick-clad, wood-framed chimneys became common in residential construction. This trend resulted from the increasing popularity of metal insert fireplaces. While they may appear similar from the exterior, the structure and weather-resistant envelope of wood-framed chimneys are very different than masonry-built chimneys. Prior to studying damage, it is important to understand critical elements in the structural support and weather-resistant envelope of wood-framed chimneys and the types of damage that can result from improper construction.[1]

    Fires can be caused by devices that fail due to a manufacturer's defect. Quality assurance procedures have gone a long way to eliminate out-of-box failures but manufacturers sometimes bypass quality checks on consumer products for competitive reasons. Even the most ethical companies are susceptible to human error that can cause an almost imperceptible change in an otherwise flawless manufacturing procedure.

    As the days get shorter and temperatures turn milder, most HVAC systems are taking a well-earned vacation. For a short while, a cool breeze through open windows will be enough to keep us comfortable in our homes. But soon, homeowners will switch their thermostats from cooling mode to heating mode, and some of them will unfortunately discover their HVAC system does not heat. It's time to pull out those extra blankets and make the call to a service professional sooner than expected.

    12/21/2015 · Construction
    Wood bowstring trusses were used extensively in commercial buildings from the 1920s to the 1960s. Wood bowstring roof trusses provided long clear spans necessary in warehouse and industrial buildings. Many roofs supported by bowstring trusses are still in service today. Compared with other structural timber-truss types, bowstring trusses have exhibited more frequent structural problems. The structural deficiencies encountered are attributable to deficiencies in the original design of the trusses combined with damage due to exposure and age.

    9/28/2015 · Engineering
    The National Fire Protection Association (NFPA) has released a 2015 edition of NFPA 70E: Standard for Electrical Safety in the Workplace. It covers and assists in complying with the Occupational Safety and Health Association's requirements, including changes to requirements since the last edition. For personal safety in forensic studies it is important to stay informed of these updates. NFPA 70E covers arc flash risk assessment, establishment of arc flash boundaries, requirements of Personal Protective Equipment (PPE), use of PPE within the arc flash boundary, and equipment labeling requirements regarding arc flash hazards. The following examples illustrate the importance of staying abreast of the latest standards.

    7/16/2015 · Construction
    History shows us that building codes have been around for a long time - in fact, the earliest known was around in 2000BC[1]. Penalties were also much harsher for construction defects. If a builder constructed a house that collapsed and killed the owner, the builder was not fined, but was put to death. The United States has been a country with diverse codes - as many as 5,000 at one time. More recently, however, various states and municipalities have adopted "model" codes such as the International Building Code or International Residential Code. These provide a "base" and may be used as written or an Authority Having Jurisdiction (AHJ) may amend certain parts of the model code, making it more stringent and/or specific for a certain area.

    5/14/2015 · Forensics
    Whether it is helping us formulate our opinion or confirming an initial diagnosis, technology plays a valuable role in forensic engineering work. Following are a few examples of existing technology available to Donan's project managers. Though not standard issue, these tools are utilized when necessary to accurately determine or confirm a cause of loss.

    There are many types, manufacturers, and sizes of commercial HVAC systems which can make it difficult to create general guidelines for repair procedures and estimates for hail-damaged units. This guide uses the most common "light commercial" rooftop units (RTUs), which are 5-tons, 7.5-tons, and 10-tons in capacity, for estimating time to repair or replace.

    Imagine for a moment that you are sitting in your home, listening to the rain while reading your favorite novel. Then suddenly you hear a roar of thunder and your home becomes dark. What just happened? You may have just experienced a power surge. Although lightning is not the most common cause of this phenomenon, it is excellent for illustrating what a power surge is and how it can affect your home. A power surge is a term used to describe a condition where the voltage and or current increases beyond its normal levels. Power surges, when due to the elevation of the voltage being supplied by the electrical utility company, have the potential to change data streams, interrupt electrical control circuits, burn out components, cause arcs, create shorts between conductors, overload systems, and cause system failures. The most common causes of power surges are indicated as follows:

    1/7/2015 · Construction
    Concrete is a desirable construction material due to its inherent strength and durability, which make it well-suited for many applications in residential and commercial construction, especially foundations, floor slabs, driveways, sidewalks, and roads, among other things. In these applications, concrete that is properly designed, mixed, placed, and maintained will perform exceptionally well for many years. However, poor design or mix, improper placement, finishing techniques, or inadequate maintenance may result in concrete that does not perform as intended. Aside from cracking, which is probably the most common form of distress to concrete, since virtually all concrete will crack as it cures, surface distress due to scaling, spalling, and popouts are the most common forms of damage.

    12/2/2014 · Construction
    The relationship between wind, hailstone velocity, and impact energy is based on an understanding of fundamental physics. Over a half century of laboratory research and field studies have determined that the severity of hail damage to a roofing material is contingent on the kinetic energy at the point of impact and the roofing material's resistance to that impact energy. These studies have found that a hailstone must be of a certain mass (i.e., size), and it must be traveling at a certain speed (velocity) to result in functional damage to the roofing material. The kinetic energy is a composition of mass and velocity, defined by the following equation:

    10/17/2014 · Construction
    Chances are, it's happened to you. An unexpected period of cold weather occurs and temperatures drop well below freezing for an extended period of time. One morning you attempt to turn the water on in the kitchen sink and...nothing. Hot water? Nope. Cold water? Nope. What happened? Did you forget to pay the water bill...again? Chances are, your pipes are frozen. "How can that happen? They are inside the house!", you may say; however, just because your water lines are inside the building envelope, does not mean they are adequately protected from freezing.

    9/4/2014 · Construction
    If hail impacts a roof covering and the effects of this impact result in some loss in the material's overall integrity or functionality, this material is classified as "hail damaged." More specifically for cedar shakes and shingles, valid hail damage is typically a new fracture of the cedar corresponding to a clean spot or scuff mark from the hailstone impact.

    7/25/2014 · Construction
    Although sags along roof ridgelines can be discovered at any time, in northern climates they are often attributed to the effects of a past snow load. To make an educated analysis of the actual cause of this phenomenon, one must have a basic understanding of the structure and the loads to which it has been subjected.

    Heating, ventilating, and air conditioning (HVAC) systems consist of many components that work in unison to create the desired comfort level for our homes and offices. A well maintained system is designed to last around 15 years, but the life can be dramatically reduced when proper installation procedures and routine maintenance are not performed.

    5/28/2014 · Construction
    Ice dams and their resultant leaks are often a chronic and expensive problem in those regions where snow-covered roofs are a common occurrence. To understand their detection, cause, and prevention requires some understanding of the dynamics of a structure's construction, insulation, and ventilation.

    A space heater is a device designed to warm a small area. These devices are typically portable, but the category does include gas- and wood-fueled models that are permanently installed; however, these are not the focus of this article.

    3/12/2014 · Failure Analysis
    Washing machine failures can create significant damage, exposing insurers and their clients to property damage. These failures often involve a high volume of water and can occur without warning. Through the examination of several hundred washing machines, the DONAN Component Testing Laboratory has identified a statistically significant failure trend in General Electric (GE) washing machines. The amount of water supplied to the tub of the washing machine is controlled by a water valve (solenoid-controlled valve) and pneumatic controls. The washing machine's load selector is a pneumatic pressure switch, which activates and deactivates the water valve.

    2/10/2014 · Construction
    Shallow foundations are the most commonly designed and constructed structural foundation system. As opposed to deep foundations where structural loads are transferred to subsurface layers or multiple depth ranges, shallow foundations transfer loads to the earth (soil) relatively near to the ground surface. Some examples of shallow foundations include building components often seen in residential construction such as spread footings, continuous foundation walls and footings, slab-on-grade foundations, and mat-slab foundations.

    1/9/2014 · Construction
    After a tornado event, devastation and destruction are found along the tornado path. Due to the wood-framed construction predominant in Texas and Oklahoma, extensive damage to a house can occur. But how do you know whether visible cracks in the Sheetrock or brick finishes are just cosmetic damage or the signs of structural failure?

    12/10/2013 · Fires & Explosions
    Automatic fire suppression systems are by far the most effective and safest means of preventing extensive fire damage and saving lives. For this discussion, we will touch on automatic sprinkler systems (building systems) and kitchen hood suppression systems. These systems range from very simple to extremely complex.

    10/23/2013 · Construction
    Summertime rolls around and people start seeing condensation on ductwork. Their first thought is that something is wrong with their air conditioner. Actually, sweating ducts have several causes. Very few are attributable to defective air conditioners.

    10/4/2013 · Engineering
    In urban and suburban areas, stormwater systems are found everywhere. From surface waterways, such as rivers, streams, and ditches, to subsurface drainage systems, such as storm sewers and culverts, stormwater systems are as ubiquitous as concrete, which is one of the reasons they are so important (Figure 1). Impervious surfaces like concrete, pavement, and roofs prevent stormwater from naturally absorbing into the ground, and the resulting runoff can cause flooding, erosion, and subsequent structural damage.

    For many years, the fire investigation industry has seen numerous fires involving livestock buildings. These fires are often high profile, especially when masses of animals are lost or injured. Many times these losses are in older structures with neglected electrical and/or heating systems. Given the interior environment, corrosion and degradation to electrical and heating components are common.

    8/16/2013 · Construction
    Cupping, buckling, and crowning are three common problems encountered in wood flooring (flooring). These problems are caused by a combination of the normal material characteristics of the flooring and improper installation of the flooring.

    7/31/2013 · Waterproofing
    While shovels, snowblowers, plows, and deicing agents are used to clear snow and ice from driveways and sidewalks during the winter, removing frozen precipitation from the roof of a house is a bit more challenging. As snow and ice piles up on the roof and subsequently thaws out, the melt-water can sometimes result in damage to the interior of the structure.

    7/15/2013 · Construction
    "Hail has damaged my concrete driveway!" How many times have you heard this claim? A homeowner whose house has experienced a recent severe hailstorm starts to notice things they never noticed before around their house.

    A Donan fire investigator uses many techniques in order to determine the origin and cause of a fire. Chief among these are the investigator's observations of the scene and the conditions surrounding the scene.

    In this age of high energy costs, the price of heating the house will increase. People will be searching for alternate sources to heat their houses.

    4/24/2013 · Construction
    In our October 2010 newsletter, Bob Whelan, P.E., discussed how to approach a roof hail study by using the scientific method. In summary, one should perform a collateral study of the property, or neighboring properties, to gather information about the particular hailstorm in question.

    3/21/2013 · Construction
    Whether to build a residence on a concrete slab or conventional crawlspace foundation is a common decision homeowners must make.

    2/13/2013 · Construction
    By: DONAN
    Is construction vibration just an annoyance, or does it have the potential to cause aesthetic and structural damage to nearby structures?

    1/7/2013 · Construction
    Attic ventilation problems can cause elevated relative humidity in an unheated, residential attic. Elevated relative humidity in the attic can promote mold growth and increase the moisture content in the wood framing to a level that promotes fungal growth and rotting.

    11/30/2012 · Failure Analysis
    Every year, Donan Engineering is asked to look at dozens of basement walls that have failed. A wall is determined to have "failed" when the structural integrity is compromised - such as with the development of a horizontal or vertical crack.

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    Steven J. Meyers
    President and Chief Technical Officer
    132 Clow International Parkway
    Bolingbrook IL 60490
    USA
    phone: 630-624-1347
    DVI-Aviation-Safety-Experts-Logo.gif
    Steven Meyers Aviation Aircraft Safety Expert PhotoSteven J. Meyers is an experienced Aircraft Accident Investigator who combines scientific analysis, material science, laboratory testing, piloting expertise, aircraft maintenance, and human factors to investigate air safety issues. He has a Masters Degree in Aeronautical Science, BS in Engineering Physics, AS in Manufacturing Engineering Technology, and an Extension Diploma in Applied General Metallurgy.

    Aviation and Human Factors: Piloted / instructed in 60 different types of aircraft ranging from turbines to gliders to sea planes. Multi-engine, instrument rated commercial pilot, active flight instructor, FAA licensed Airframe and Power Plant Mechanic (A&P) with FAA Inspection Authorization(IA).

    Accident Investigator: Extensive experience investigating product liability claims. Applies scientific methodologies to accurately reconstruct and explain the circumstances of an accident. Investigations ranging from the in-flight failure of composite airframe structures to the use of unapproved parts to reconstructing ground vehicle incidents. Illinois licensed Private Detective.

    Material Scientist: Brings a strong experience in applying modern materials science coupled with a focus on failure analysis and the use of standardized testing techniques. Evaluates the effects of corrosion, temperature, and mechanical stresses on the performance of materials. Analysis performed on fractured thru-bolts, crankshafts, fuel pumps, carburetors, and bearings.

    Failure Analyst: Provides practical and comprehensive testing that is independent and unbiased. Capable of performing a broad range of tests to determine the strength, physical, chemical, and wear properties of metals, coatings, ceramics, composites, and plastics. Access to ASTM qualified test machines, optical microscopes, SEM, FTIR, load cells, and accelerometers.

    USAF Non-Commissioned Intelligence Officer: Confident public speaking skills with experience in preparing briefings and making recommendations to high-level military commanders

    Areas of Expertise:

  • Aircraft Design and Operation
  • Aircraft Performance
  • Avionics & Autopilots
  • Piloting & Training
  • Reciprocating Engines
  • Major Repairs & Alterations
  • Human Factors
  • TAA Aircraft
  • FAA Regulations & Certification
  • Wreckage ReconstructionIn-Flight Break-Ups
  • Mid-Air Collisions
  • Flight Path Reconstruction
  • Crashworthiness
  • Loss of Control
  • System Failures
  • In-Flight Fires
  • Cockpit Automation
  • Mechanical Testing
  • Material Compatibility
  • Patent Infringement
  • Failure Analysis
  • Composite Materials
  • Mechanical Fasteners
  • Tribology & Wear Testing
  • Fretting, Galling & Corrosion
  • Lubricants, Greases, & Fuels

  • View Steven Meyers' Consulting Profile.
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