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Mechanical Failure Expert Witnesses

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Jeffery H. Warren, PhD, PE , CSP
Chief Engineer & CEO
Mail: PO Box 1608
Visit: 7805 Saint Andrews Road
Irmo SC 29063
USA
phone: 888- 827-7823 / 803-732-6600
fax: 803-732-7576
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Jeffery H. Warren, PhD, PE, CSP is Chief Engineer and CEO of The Warren Group. A licensed professional engineer in 14 states, he holds a Bachelor of Science in Mechanical Engineering from the University of North Carolina as well as a Master of Science and a Doctorate in Mechanical Engineering from Virginia Polytechnic Institute and State University — all with machine design emphasis. 

Background Experience - A former research engineer for DuPont at the Savannah River Laboratory, Dr. Warren designed, patented, and built an incinerator to burn radioactive waste. He also taught mathematics and engineering at the University of South Carolina in Aiken. Later, Dr. Warren was chief machine designer and owner of Warren Engineering Company, Inc., which designed and built special machinery for manufacturing automation. He combined his passion for keeping people safe with his knowledge of mechanical engineering, machine design, risk assessment, and safety to pursue a career in forensic engineering. 

Dr. Warren is a Certified Safety Professional in engineering aspects and a Certified Fire and Explosion Investigator. He has investigated more than 2,000 claims involving property damage and injuries related to machinery, equipment, and products since 1987. Dr. Warren is a court-qualified expert in mechanical engineering, machine design, risk assessment, and safety. He’s also testified in several hundred depositions and more than 75 trials in state and federal court. He has successfully passed Daubert challenges. Dr. Warren was on the committee that authored the ANSI Technical Report, ANSI B11.TR3-2000 entitled, “Risk Assessment and Risk Reduction – A Guide to Estimate, Evaluate and Reduce Risks Associated with Machine Tools.” He regularly investigates personal injury and wrongful death product liability claims as well as property damage claims involving machinery and equipment in both manufacturing and construction workplaces for both the plaintiff and the defense. He has a reputation for thoroughly analyzing each case to provide precise, understandable, fact-based opinions. 

Dr. Warren has a way of making complicated mechanical engineering, machine design, risk assessment and safety concepts understandable to the ordinary person. He also presents classes and seminars on topics ranging from investigation of machinery and equipment, unintentional injury claims, subrogation and SAFETYTHROUGHDESIGN®. 

Areas of Expertise:

  • Machine Design and Safeguarding
  • Mechanical Engineering
  • Risk Assessment
  • Safety
In 2011, a 5-year old boy was severely injured at a public playground when he fell through a second floor opening around a fireman's pole in a playhouse. He fell more than seven feet and struck a bare concrete floor. We are thankful that he eventually recovered from his injuries. The person who designed and built the playground was accused of negligence. A lawsuit ensued, and eventually settled in favor of the boy.

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Matthew Warren
Main Contact
Mail: PO Box 1608
Visit: 7805 Saint Andrews Road
Irmo SC 29063
USA
phone: 888- 827-7823 / 803-732-6600
fax: 803-732-7576
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Warren Forensic Engineers and Consultants, founded in 1997, is extremely well versed in the disciplines of Mechanical, Electrical, Chemical, Structural, and Fire and Explosion investigation. Their engineers are known for delivering the truth — origin, cause, responsibility, and cost of an event or claim — with unmistakable clarity. Warren Forensics provides technical investigations and analyses of personal injury and property claims as well as expert testimony for insurance adjusters and attorneys. Each member of their engineering team is a licensed professional engineer (P.E.) in multiple states. Beyond engineering expertise, their engineers and consultants also hold a variety of other certifications including Certified Fire and Explosion Investigator, Certified Vehicle Fire Investigator, Certified Fire Investigation Instructor, CMSE®-Certified Machine Safety Expert, Certified Safety Professional, Certified Building Inspector, and Certified Property and Evidence Specialist. 

Types of Loss:

  • Chemical: Ammonia - Confined Space - OSHA
  • Collision: Animal - ATV - Automotive - Bicycle - Farm Equipment - Motorcycle - Pedestrian - Truck
  • Commercial: Construction Defects - Construction Related Losses - Electrical and Control Systems - Liability Claims - Lightning Damage - Mechanical Systems - Roofing - Slip, Trip and Fall - Structural - Water Damage - Workplace Injuries
  • Fires and Explosions: Boiler - Commercial - CSST - Dust Explosions - Electrical - Fire Protection Systems - Industrial - LP and Natural Gas - Machinery and Equipment - Marine - Residential - Spontaneous Combustion - Structural - Vehicle and Mobile Equipment - Welding and Hot Work
  • Industrial: Boilers and Pressure Vessels - Construction Defects - Construction Related Losses - Cranes, Hoists, Lifting and Rigging - Electrical and Control Systems - Industrial Process Equipment - Liability Claims - Lightning Damage - Machinery and Equipment - Material Handling - Mechanical Systems - Roofing - Slip, Trip and Fall - Structural - Water Damage - Workplace Injuries
  • Inland and Ocean: Boilers and Pressure Vessels - Bulk Material Handling - Cargo Damage Assessment - Cargo Handling - Cranes, Hoists, Lifting and Rigging - Docks and Piers - Machinery and Equipment - Marinas - Marine Collisions - Marine Fire Protection Systems - Marine Liability Analysis - Mechanical and Electrical Systems - Slip, Trip and Fall - Workplace Injuries
  • Residential: Construction Defects - Construction Related Losses - Electrical Systems - Lightning Damage - Mechanical Systems - Roofing - Slip, Trip and Fall - Structural - Water Damage
  • Subrogation: Consumer Products - Electrical - Fire and Explosions - Machinery and Equipment - Workers’ Compensation
  • Catastrophic: Earthquake - Flood - Freeze, Ice and Snow - Hail Storm - Hurricane - Tornado - Wildfire - Wind Storm and Wind Shear

Featured Experts:

In 2011, a 5-year old boy was severely injured at a public playground when he fell through a second floor opening around a fireman's pole in a playhouse. He fell more than seven feet and struck a bare concrete floor. We are thankful that he eventually recovered from his injuries. The person who designed and built the playground was accused of negligence. A lawsuit ensued, and eventually settled in favor of the boy.

Event Data Recorders (EDRs) were first introduced by General Motors (GM) in 1974. That data was only available to GM; however, since 1994 more and more vehicle EDR’s have recorded data that can be gathered. The data captured can be imaged and is being used by vehicle manufacturers, law enforcement officers, and collision reconstructionists to better understand what is happening in a collision. In accident investigation, EDRs have the potential to provide independent measurements of crash data that would elsewise be estimated by reconstruction methodology.

6/27/2018 · Corrosion
When thinking about the safe operation of boilers (and don't we all?), several systems can readily be named; flame control, fuel/air ratio; steam pressure control, levels in the vessel, etc. What about the water? It seems so passive, as long as there is enough for level control, what's the big deal? Well, it turns out, that as the steam produced by a boiler is used in the process, the condensate from that steam is returned to the boiler as feedwater. However, since 100% of the condensate is not returned, whatever solids had been in that water before it evaporated to form steam are left in the remaining water. Fresh feedwater is added to maintain levels, but even fresh water contains some dissolved solids. So over time, the water in the boiler system gets saturated with all sorts of dissolved minerals.

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John Holecek, MSME, PE, CSE, CFEI
Senior Consulting Engineer
Mail: PO Box 1608
Visit: 7805 Saint Andrews Road
Irmo SC 29063
USA
phone: 888- 827-7823 / 803-732-6600
fax: 803-732-7576
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John Holecek, MSME, PE, CSE, CFEI, Senior Consulting Engineer, is a licensed professional engineer in 8 states and has both a Bachelor of Science in Mechanical Engineering and Master of Science in Mechanical Engineering from the University of South Carolina. Mr. Holecek has passed the professional engineering exam in both Mechanical and Controls Engineering. A NAFI Certified Fire and Explosion Investigator, he has more than 22 years of experience in the design of industrial, commercial and consumer products. These products include industrial ovens, paint spray systems, HVAC systems, conveyors, and gas appliances including commercial cooking equipment and gas grills. Mr. Holecek's design experience includes the control systems for these products as well as the normal safeguarding provisions applied to these products. Additionally, he has supervised manufacturing operations and managed outside contractors in site safety requirements and the installation of industrial process equipment. By virtue of his experience, he is well versed in federal and state worker safety regulations. 

Areas of Expertise:

  • Electrical and Mechanical Control Systems
  • Fires and Explosions
  • Gas Fired Equipment and Appliances
  • ICC, NFPA, OSHA Codes and Standards
  • Industrial Processes and Operations
  • Safety Regulations
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Roger Davis, PE, CFEI
Senior Consulting Engineer
Mail: PO Box 1608
Visit: 7805 Saint Andrews Road
Irmo SC 29063
USA
phone: 888- 827-7823 / 803-732-6600
fax: 803-732-7576
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Roger Davis, PE, CFEI, Senior Consulting Engineer, is a Licensed Professional Engineer in South Carolina, North Carolina, Alabama, Georgia, and Mississippi. Mr. Davis holds a Bachelor of Science in Mechanical Engineering and a Master of Business Administration from the University of South Carolina. He also has a certificate in Crane Safety from the Georgia Institute of Technology, Distance Learning and Professional Education Center as well as certificates in Fire and Explosion Investigation and Vehicle Fire Investigation.

Mr. Davis is experienced with municipal water, sanitary sewer, and storm water system design, construction, and operations. His expertise also includes property damage and personal injury investigations involving municipal utilities. Mr. Davis is an accomplished gas and diesel engine mechanic and has more than 30 years of experience with hydraulic plumbing and piping issues. He gained practical experience in hydraulics, fluid flow, tanks, and material handling with the South Carolina Department of Health and Environmental Control (DHEC) and Laidlaw Environmental Services, Inc., the largest hazardous and industrial waste firm in North America. He also gained experience in industrial operations as a Manufacturing Engineer.

Roger Davis has investigated claims and injuries ranging from pressure piping system failures and material and personnel handling equipment to large engine failures and fires involving machinery, generators and vehicles.

Areas of Expertise:
  • Aerial Lifts
  • Failure Analysis
  • Industrial and Accident Reconstruction
  • Machine Safeguarding
  • Products Liability Vehicle
  • Mechanical Failure
  • Water and Sewer Systems
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    44648 Mound Rd.
    Suite 174
    Sterling Heights MI 48314
    USA
    phone: 248-408-7981
    Douglas-Van-Sweden-Vehicle-Accident-Reconstruction-Expert-Photo.jpg
    Douglas J. Van Sweden, PE, is a Mechanical Engineer with over 45 years of experience in the automobile industry, including 20 years with the General Motors Corporation.

    Litigation Support - Since 1997, Mr. Van Sweden has been providing insurance companies, legal firms, and manufacturers with the objective, scientific research to clearly define what really happened, for the cost-effective answer. The facilities, equipment, training, and commitment to continuing education allow him to find and assemble the critical missing pieces in Accident Reconstruction cases. He painstakingly reconstructs events so the end picture will be the accurate and defensible answer to what really happened.

    Mr. Van Sweden's services are available to attorneys representing plaintiff and defendant and include site review, record review, thorough reports, depositions, and trial testimony as needed.

    Vehicle Expertise:
    • Cars
    • Trucks
    • Motorcycles
    • Boats
  • Recreational Vehicles
  • Bicycles
  • Personal Watercraft
  • Non-Transportation - Elevators, Hoists:
    • Vehicle Systems and Structures
    • Vehicle Design
    • Seat Belt and Airbag Restraint Systems
    • Interior Components
    • Fuel Systems
    • Electrical Systems
    • Cooling Systems
    • Exhaust Systems
  • Drive Trains
  • Brakes
  • Suspensions
  • Steering
  • Body
  • Corrosion
  • Crash Testing
  • Fires and Explosion Cause / Origin
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    Bransford Pickett, PE
    PE Mechanical Engineering
    1356 Santa Olivia Road
    Chula Vista CA 91913
    USA
    phone: 619-977-7693
    fax: 619-781-8752
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    Bransford Pickett, PE, DFE, BSc, MScBA, has over 25 years of experience as a Mechanical Engineer. SEFS expertise includes design and review of material handling equipment, material handling management, and ship board systems. SEFS offers litigation support services for Accident Investigation and Reconstruction covering failure analysis, process simulation, regulatory compliance, equipment reliability, and personal injury / safety. His materials handling and engineering services are offered to attorneys, insurance and end user companies nationally and internationally.

    Mr. Pickett is a member on the American Society of Mechanical Engineers B30 committee on Safety Codes and Standards for cranes and rigging as well as a member of several subcommittees. He is also a member of American Society of Mechanical Engineers P30 Committee- Planning for the Use of Cranes, Derricks, Hoists, Cableways and Lifting Accessories. ASME BTH Standards Committee.

    Mr. Pickett is a Professional Engineer, and holds a BSE from the University of Michigan, Ann Arbor, and a MScBA in Finance from San Diego State University, as well as a board certified Diplomate Forensic Engineer. He has qualified as an expert witness in the State of New York Supreme Court and the State of California Supreme Court.

    Accident Investigation:
    • Man baskets, Forklifts, Scissors Lifts, Aerial Lifts, Rigging Gear, Hydraulic Jacks, and Hydraulic / pneumatic Lift Systems, Automotive Lift Systems, Conveyors, Pallet and Packages Conveyors, Pneumatic Systems, Machine tools, Boats, Barges, and Elevators
    • Tower, Mobile, Bridge, Truck, Portal, Container, Jib and Floating Barge Cranes, and Derricks
    • Operator training compliance to National Commission for the Certification of Crane Operators, NCCCO, requirements for tower crane, mobile crane, overhead crane, articulating crane operator training and certification, signal person, and rigger certification
    • Compliance covers applicable national and international standards that include the ABS, ASTM, ASM, ASME, ANSI, WSTDA, ALI, etc. and DIN, EN, FEM to list a few. National regulations include state and federal OSHA requirements as well as DOE, military specifications and standards
    View Bransford Pickett's Consulting Profile.
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    Steven Kushnick
    Principal Engineer
    P.O. Box 670084
    Marietta GA 30066
    USA
    phone: 770-591-1720
    fax: 770-591-7996
    Mechanical Engineer - Turbomachinery Expert. Gas turbine engines, steam turbines, jet engines, compressors, pumps, expanders, generators, cogeneration, combustion equipment, diesel engines, and reciprocating compressors. Failure analysis, stress analysis, mechanical design, design analysis, troubleshooting, performance analysis, durability assessment. Access to metallurgical laboratory. Experienced Expert witness.

    Please see our Service List at www.sbkushnick.com/servicelist.pdf for a concise description.
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    Matthew I. Stein, PE
    Principal
    10591 Belford Place
    Truckee CA 96161
    USA
    phone: 530-587-7618
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    Matthew I. Stein, PE, principal of Stein Design, has 12 patents to his name, 30+ years of Mechanical Engineering experience specializing in Product Design & Development, and 10+ years of Expert Witness experience with Patent Litigation and Product Liability. Multiple Injury cases relating to drinking fountains or involving the use of Safety Showers/Eyewashes. He has designed highly successful products for industry leaders such as Hewlett Packard, Seagate, IGT, Duraflame, Plantronics, and Haws.

    Litigation Support - Mr. Stein’s background as a National Merit Scholar, MIT graduate, and bestselling author, combined with his extensive media experience on television, radio and in public speaking engagements, make him a formidable expert witness who is not only technically savvy but also presents exceptionally well in front of judge and jury.

    Most cases settled out of court, but in one patent infringement case where Stein was the key expert witness for plaintiff, the jury awarded an 8 figure judgment, and in a recent liability case where Stein testified on behalf of plaintiff, the jury awarded $1.8 Million. As a former world class rock climber, and licensed general contractor, he can also offer testimonial on climbing accidents and job site safety.

    Expert Witness Experience:
    • 21 cases total (15 patent related, 2 related to trade secrets, and 4 related to product liability)
    • Authored approximately 34 expert reports
    • Provided deposition on 12 different occasions
    • Provided expert witness court testimonial on multiple days for each of 3 jury trials
    Areas of Expertise:
    • Patent Infringement and/or Invalidity
    • Consumer Product Design & Liability
    • Cash Machines & Paper/Membrane Handling Devices
    • Telephone Head Sets & Small Scale Sonar Devices
    • Water Filtration, Drinking Fountains, & Misc Plumbing Products
    • Safety Showers & Eyewash Equipment
    • ANSI/ISEA/OSHA for Emergency Eyewash & Shower Equipment
    • Plumbing Fixtures & Valves
    • Medical Filters
    • Photovoltaic Panels
    • Plastic Part Design & Application
    View Matthew Stein's Consulting Profile.
    Matthew Stein, PE
    Disasters often strike without warning and leave a trail of destruction in their wake. Yet armed with the right tools and information, survivors can fend for themselves and get through even the toughest circumstances. This book provides a thorough, practical guide for how to prepare for and react in many of life's most unpredictable scenarios.
    Matthew Stein, PE
    This book, comprehensive primer on sustainable living skills—from food and water to shelter and energy to first-aid and crisis-management skills—prepares you to embark on the path toward sustainability. But unlike any other book, Stein not only shows you how to live “green” in seemingly stable times, but to live in the face of potential disasters, lasting days or years, coming in the form of social upheaval, economic meltdown, or environmental catastrophe.
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    Dr. J. Rasty, PE, MBA
    President & CEO
    2309 19th Street
    Lubbock TX 79401
    USA
    phone: (806) 368-9811
    fax: (806) 368-9812
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    Since 1988, Real-World Forensic Engineering, LLC ("RWFE") has provided engineering services to industries and government labs, as well as litigation support to both plaintiff and defense attorneys practicing in many areas.

    RWFE Expertise Includes:

    Components & Machinery
    Metallurgy & Corrosion
    Dynamics of Impact & Collisions
    Friction Analysis / Slips, Trips and Falls
    Intellectual Property & Patent Review
    Accident Reconstruction / Animation
    Computer Aided Design
    Education & Training
    Electrocution & Switch Malfunction
    Grounding & Lightning Protection
    Lightning Impulse Testing
    Products and Premises Liability & Safety
    High-Voltage & Current Power Systems
    Bridge Design and Safety
    Fire & Explosion Cause and Origin
    And Much More...


    At RWFE, we proudly distinguish ourselves by our Four C's:

    CREDENTIALS. COMPETENCE. CREDIBILITY. COMMUNICATION.

    Credentials:B.S., M.S., M.Eng., M.B.A., J.D., and Ph.D. Degreed
    Licensed Professional Engineers in Mechanical, Electrical, and Civil Engineering
    Tenured University Professors and Professionals
    NAFI Certified Fire and Explosion Investigators (CFEI)
    Licensed Master Electricians
    Competence:Over 80 Combined Years of Experience in Engineering R&D, Industry, Academia, Consulting, and Expert Witness Litigation Support
    Over 120 Combined Deposition and Court Testimonies
    Credibility:Internationally Recognized in Our Areas of Expertise
    More Than $19 Million in Peer-reviewed and Funded Research Grants
    Over 200 Combined Scientific Publications and Journal Articles
    Communication:Over 20 Different Undergraduate and Graduate-level University Courses
    Over 30 Invited Short Courses, Talks, and Lectures

    Design Evaluation – Accident Investigation – Intellectual Property
    Failure Analysis – Fire Cause & Origin – Component Testing
    Computer Aided Drafting – Accident Animation
    Expert Witness & Litigation Support

    www.ExpertEngineering.com
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    Thomas Read, PhD
    Principal
    1435 Fulton Rd.
    Santa Rosa CA 95403
    USA
    phone: 707-544-2374
    fax: 707-544-2370
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    Expert Background: Dr. Thomas L. Read is the Principal and CEO at A. Read Consulting, LLC. He received his PhD. from Stanford University in 1972 and has over 25 years of manufacturing experience in electronics, metallurgy, factory safety, failure analysis, glass fracture, glass failure and bottle failure. As a member of the electronics industry, he has earned process patents and has an extensive background in manufacturing techniques.

    In parallel, Dr. Read has spent over twenty five years as a consultant to attorneys and engineers. He has given more than 100 depositions and has appeared in court numerous times.

    Company Profile: Read Consulting, LLC is a full service laboratory providing services in the following areas:
  • Failure Analysis; Factory Safety and Personal Injury (including machine guards and manufacturing safety)
  • Glass Failure Analysis - Glass Fracture, Glass Failures and Bottle Failure
  • Metal and Ceramic Failure
  • Grinding Wheel Failures
  • Intellectual Property and Patent Disputes
  • Product Liability and Product Quality
  • Manufacturing Disagreements (such as Intellectual Property, Failed equipment and Contract Disputes)
  • Reverse Engineering
  • As "water hammer" (i.e. liquid impact) has the potential to cause glass bottle failure, Read Consulting LLC created two such failures to study the resulting fracture surface details.

    4/23/2015 · Failure Analysis
    Read Consulting was asked to determine why a welded chair failed and caused injury to the person sitting in it.

    The root cause of the failure of customer returns of heated automobile rear view mirrors was investigated.

    During normal operation, the arm on an automatic wafer test station failed. Root cause failure analysis determined that the drive shaft on the right angle gear motor used to raise and lower the manipulator arm had failed first.

    5/21/2012 · Failure Analysis
    This grinding wheel was part of a product liability and personnel injury case. It was claimed that the subject wheel had unexpectedly failed (i.e. flown apart) and an escaping piece had hit the plaintiff in the face causing serious injuries. According to the user, the grinder with the wheel was purchased approximately one hour before the grinding wheel failure.

    3/29/2012 · Failure Analysis
    A failed plastic lawn chair was examined to determine the cause of failure. This chair failed on the premises of a restaurant In this study the subject chair is examined and compared to several exemplar purchased at the same time. The objective of this study is to determine the cause of failure.

    11/8/2011 · Failure Analysis
    Glass Failure Analysis Expert Witness performs a failure analysis of a several tempered glass doors that had "spontaneously" failed at a construction site. The objective of this glass failure analysis is to determine the cause of failure and make recommendations to the contractor.

    8/30/2011 · Failure Analysis
    Materials failure analysis expert performs a failure analysis to determine the source of a metal piece found in tomato product.

    5/17/2011 · Failure Analysis
    A plumbing failure analysis was performed to determine why a cold water supply line to a bathroom sink had failed after only one year of service.

    A glass failure expert witness performs a root cause failure analysis on an exploding beer bottle. The object of this root cause failure analysis is to determine the cause of the bottle failure.

    7/7/2009 · Design
    Before expending the effort necessary to reverse engineer a device or object, it must be definite that the object under study is not covered by one or more patents. This avoids a dispute over patent violations. Once it has been established that no patent coverage exists, one can use multiple techniques to reverse engineer a product. These are summarized below:

    The cracked tank was first inspected in the "as received" condition. In this condition it was cracked, but it was still whole. Next, the failed tank was separated by pulling it apart. This was done to expose the fracture surfaces of the main crack. This allowed for a complete failure analysis and for a determination of where the crack initiated.

    Glass fractography is the most effective method for determining why a glass object, such as a bottle, failed. This technique consists of examining the fracture surfaces of the failure for artifacts such as Wallner lines and using them to trace the crack back to its origin. Once the origin has been identified, it can be examined in detail with a microscope to determine the cause of the failure.

    1/28/2006 · Failure Analysis
    Note: Glass Fractography is the most effective method for determining why a glass object, such as a bottle, failed. This technique consists of examining the fracture surfaces of the failure for artifacts such as Wallner lines and using them to trace the crack back to its origin

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    Daniel Rapperport
    8 Wallis Court
    Lexington MA 02421
    USA
    phone: 781-862-9001 or 339-222-2822
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    Rapperport Associates, Inc., provides exceptional capability in Failure Analysis, Fire and Explosion Investigation, Accident Reconstruction, Structural Analysis, Mechanical and Electrical Engineering, Metallurgy and Materials Science.

    We have provided superior technical support for litigation since 1974, and possess an extraordinarily talented technical team with impeccable academic and industrial credentials and proven analysis capability. Our team of distinguished scientists and engineers is drawn principally from Massachusetts Institute of Technology (M.I.T.) and Stanford University.

    AREAS OF EXPERTISE:

    Failure Analysis
  • Structural Design Analysis
  • Metallurgical Failures
  • Finite Element Stress Analysis
  • Fracture and Fatigue Analysis
  • Scanning Electron Microscopy
  • Corrosion

  • Accident Reconstruction
  • Automobiles / Trucks
  • Biomechanics / Injury Mechanism
  • Off-Road Vehicles
  • Occupant Motion
  • Aircraft
  • Animation

  • Fire & Explosion Analysis
  • Cause and Origin
  • Electrical
  • Gases, Liquids and Dust
  • Industrial Processes
  • ........Safety
  • Machine and Industrial Safety
  • Machine Guarding
  • Construction Failures
  • Slips, Trips, Falls


  • Engineering
  • Mechanical
  • Structural / Civil
  • Metallurgy
  • Materials Science
  • Aeronautics and Astronautics
  • Electrical
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    T. Kim Parnell, PhD, PE
    Principal
    1150 Kelsey Dr.
    Sunnyvale CA 94087
    USA
    phone: 408-203-9443
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    Medical Devices, Biotech, Failure Analysis, Mechanical Eng, Materials, Reliability, Expert Witness

    Kim Parnell Mechanical Engineer Expert PhotoT. Kim Parnell, PhD, PE is a Professional Mechanical Engineering consultant with strong experience in a number of technology areas. He holds PhD and MSME degrees from Stanford University in Mechanical Engineering and a BES from Georgia Tech. He specializes in the mechanical engineering design and behavior of Biomedical Devices, Superelastic and Shape Memory Metals (Nitinol), Bioabsorbable Polymers, Composites, Fiber-Reinforced Materials, Electronics, and Consumer Products. Dr. Parnell consults actively in these areas using finite element analysis and other advanced technologies to improve designs, to perform failure analysis, and to improve reliability.

    Dr. Parnell served on the Mechanical Engineering faculty at Santa Clara University from 2010-2012 and was previously a Visiting Associate Professor at Stanford University. He lectured in the Stanford Composites Design Program, and is a coach and mentor for the innovative Stanford Biodesign Program. He has worked for companies including MSC Software, Rubicor Medical, Exponent Failure Analysis Associates, SST Systems, ATT Bell Laboratories, Stanford University, and General Motors.

    Dr. Kim Parnell has experience as a medical device patent litigation expert, as an expert in product liability matters (including heavy truck crashworthiness), and frequently serves as an expert witness and litigation consultant. He has testified in both trial and deposition, and has also authored expert reports. Dr. Parnell's litigation support services are available to attorneys for both plaintiff and defense.

    Areas of Expertise:
    • Patents and Intellectual Property
    • Medical Devices
    • Medical Instrumentation
    • Composite Materials
    • Finite Element Analysis (FEA) & Simulation
    • Cell Phones, Personal Electronic Devices
    • Gas Leaks, Pipe Failure, Vapor Cloud Explosions
  • Shape Memory Materials
  • Heavy Truck Crashworthiness
  • Consumer Products
  • Product Design Refinement
  • Piping, Pressure Vessels
  • Failure Analysis
  • Reliability
  • Selected Professional Memberships:
    • Registered Professional Engineer (Mechanical), California
    • ASME (American Society of Mechanical Engineers), Fellow
    • SAE (Society of Automotive Engineers), Member
    • IEEE (Institute of Electrical & Electronics Engineers), Senior Member
    • ASM International, Member
    • SMST (Shape Memory and Superelastic Technologies), Member
    View Dr. Parnell's Consulting Profile.
    Rail residual stress distributions can be complex and variable in nature, as different manufacturing techniques produce varying stress magnitudes and distributions. To evaluate the effect of residual stresses on rail integrity, an analysis technique was sought that could quantify the effect of these stresses on web crack propagation.

    The computer program LS-DYNA3D was used to simulate the behavior of a specific, though representative, heavy truck cab-over tractor-trailer vehicle during a full 180° rollover event. These simulations provide a key component in the development of a physical testing procedure for evaluating structural integrity and occupant crash protection system designs in heavy trucks.

    2/18/2014 · Medical
    The United States Food & Drug Administration (FDA) requirements for Class III implantable medical devices requires a 10 year life, or approximately 400 million cycles of service.

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    D. Larry Dunville
    See Multiple Addresses Below
    AZ, MI USA
    phone: 574-210-8612
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    Dennis Dunville Overhead Crane Expert PhotoD. Larry Dunville has over 35 years of Overhead Crane experience. Mr. Dunville has built, installed, engineered, estimated, sold and serviced overhead bridge cranes. He has sat on the industry committees that wrote the crane specs for the steel industry, written articles, and taught professional architects and engineers about the special requirements to be aware of when designing buildings that will house overhead cranes.

    In the early 90's, Mr. Dunville lead the effort to become one of the first cranes builders in the US to attain ISO9001 certification, which lead directly to Dearborn Crane and Engineering winning the Indiana Governor's Quest For Excellence Award and the Indiana University Kelly School of Business Growth 100 two consecutive years.

    Business Experience - Mr. Dunville served as the Owner/President of Dearborn Crane & Engineering Co., a builder and installer of overhead cranes and crane runway systems, from 1975-2012. He was also the former Owner/President of Xcel Computer Systems, a CAD/CAM systems integrator. Mr. Dunville is currently the Owner/President of Digital Industrial Marketing, LLC (2014 to present) and Overhead Crane Consulting, LLC (2016 to present).

    D. Larry Dunville's Video Introduction


    Litigation Support - Larry Dunville offers expert witness services in crane cases involving industrial, manufacturing, and warehousing facilities, as well and power plants. His expertise is available to counsel representing both Plaintiff and Defendant.

    Areas of Expertise:
    • Overhead Cranes
    • Bridge Cranes
    • Overhead Traveling cranes
    • Electric Overhead Traveling Cranes
    • Overhead Bridge Cranes
    • Gantry Cranes
    • Jib Cranes
    • Workstation Cranes
    • Hoists
    • Crane Operator Training
  • Monorails
  • Crane Runways
  • Crane Safety
  • Crane Inspection
  • Crane Manufacturing
  • Crane Installation
  • Crane Runway Installation
  • Crane Fabrication
  • Runway Fabrication
  • OSHA Crane Inspections
  • Corporate Crane Safety Programs
  • Overhead Crane Arizona Office
    3606 N. Larrea Lane
    Tuscon, AZ 85750
    Telephone: 574-210-8612
    Overhead Crane Michigan Office
    12666 Highland Shore Drive
    Sawyer, MI 49125
    Telephone: 574-210-8612


    View D. Larry Dunville's Consulting Profile.
    6/15/2016 · Construction
    You have a shiny new building with a shiny new crane and everything looks great. For some reason, though, the crane won't clear the building columns, even though the contractor and the crane manufacturer are saying everything is to spec and it's not their problem. Common sense says somebody is wrong and that somebody should have to pay (because it's going to cost a bundle).

    5/10/2016 · Construction
    It is absolutely critical in the evaluation of a legal case involving cranes, to determine what type crane is involved. The word "Crane" is a generic term that covers virtually anything that lifts with a hook, but each crane type is a whole different industry with different industry associations (which compile the industry product specifications), different governing specification and different OSHA requirements. As a matter of fact, some cranes don't even have hooks!

    Check for SynapsUs
    Bill O'Donnell
    2940 South Park Road
    Bethel Park PA 15102
    USA
    phone: 412-835-5007
    fax: 412-835-5017
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    O'Donnell Consulting Engineers, Inc. (OCE) provides engineering, failure analysis, metallurgy, and expert witness services. Providing analytical, design, testing, and technical problem solving services for more than 30 years, our extensive experience gives us credibility in expert witness testimony. Our results are based on quantified engineering principles and analysis- not just opinions. We have testified in International, Federal, and State Courts, presenting comprehensive technical reports, models, and simulations that are easily understood by Judges and Juries.

    Services Offered:
  • Mechanical Engineering: Design and analysis services including finite element analysis. Troubleshooting and providing design repair solutions.
  • Failure Analysis: Metallurgy, analysis, and testing of components to determine root cause of structural failures and fires/explosions.
  • Product Liability & Patent Infringement
  • Sample Cases:
  • Power plants
  • Petrochemical facilities
  • Dams
  • Heat exchangers
  • Piping
  • Pumps
  • Valves
  • Machine tools
  • Welded structures
  • Appliances
  • Sport equipment
  • "We are often asked to solve simple to complex engineering problems - the key to our effectiveness has been our ability to integrate interdisciplinary talent in materials science and engineering" - Bill O'Donnell, President
    The largest storage rack/ retrieval system, larger than two football fields and eighty feet wide was constructed to store 108 million pounds of paper products. On July, 2002, after two months of use, the facility collapsed and sparked a fire that destroyed the entire structure and 45 million pounds of paper. Nearly 50 fire departments responded to the inferno, which burned for three weeks. The owner of the facility sued a number of companies that included the contractor that designed and built the structure, a subcontractor, and the company that supplied the 110 foot steel columns.

    4/5/2013 · Engineering
    A comprehensive engineering analysis was performed on a coke oven battery roof and heating walls. Coke oven batteries are constructed with refractory bricks.

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    Mukul Verma, PhD
    Consultant & Professor of Mechanical Engineering

    USA
    phone: 248-971-0705
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    Mukul Verma Vehicle Engineering Expert PhotoMukul K. Verma, PhD in Mechanical Engineering and Applied Mechanics, brings more than 35 years of industrial, academic and R&D experience to his consulting practice. This extensive experience includes various engineering and management assignments in the development and testing of new automobiles at a major manufacturer of vehicles. He has led the implementation of technical advances in multiple fields of vehicle design and automotive safety, some examples being in areas such as - performance of airbag systems, pedestrian’s protection, car-to-SUV crashes, telematics for crash notifications, post-crash protection, heavy truck rollovers, motorcycle handling, etc. During period, Dr. Verma was additionally appointed by the automobile manufacturers’ associations and other research organizations to lead an international team of experts which then successfully developed engineering solutions to the urgent problem of safety of occupants in passenger cars when involved in crashes with heavier SUVs or pickup trucks.

    His recent academic experience has been in the field of sustainable transportation and he has taught graduate courses in mechatronics systems in vehicles and intelligent tire-and-vehicle systems.

    Dr. Verma has published more than thirty papers in peer-reviewed journals and at international conferences and has been active in professional organizations as invited speaker, session chairman and organizer. He is well-known for his expertise in Vehicle Engineering and Traffic Safety and his interviews and opinions have appeared in US and in international media on several occasions

    Litigation Support – Dr. Verma’s recent litigation-related work has been in two fields:

    1. Automotive forensics – accident investigation and product liability evaluation of automobiles. His work includes detailed incident analysis, evaluation of the performance of vehicle and airbag systems, preparation of expert reports, depositions and trial testimony.

    2. Intellectual Property – analysis of a patent’s validity and evaluation of infringement claims for complex electromechanical and safety-related components. This includes literature search, prior art, detailed reports on validity & infringement and deposition and trial testimony.

    His clients have included automobile manufacturers, large corporations, private citizens and government entities.

    View Dr. Verma's Consulting Profile.
    Many automobile accidents are complex cases with multiple events during a single accident. The aim of forensic investigations of such (and all other) accidents is to reconstruct the sequence and the severity of events during the accident and then to establish cause and- effect relationships between the injuries (or damages) and the probable factors - vehicle design (e.g. brakes, structure, airbags); vehicle operator (e.g. distracted driver, alcohol impairment, reduced vision); and operating conditions (e.g. fog, failed traffic sign, excessive speed, icy road).

    Hybrid cars have been on US roads for many years, starting with Honda InSight (1999) and Toyota Prius(2000) in mass production.

    In crashes between two automobiles, it is generally assumed that the lighter vehicle will suffer more damage and that its occupants will suffer higher levels of injury.

    This article contains a few of the findings from our recent study of automobile safety in frontal crashes. Parts of the data analyses are presented but details such as the relationship of a particular design feature to the measured injury indicators are highly dependent on specific cases and are available only for individual discussions.

    The New Car Assessment Program (NCAP) conducted by the National Highway Traffic Safety Administration (part of the U.S Department of Transportation) underwent major changes recently. For automobiles designated as model years 2011 and later, the changes involve both what is measured and what is published.

    Over the years, there have been several product liability litigations regarding pedestrians being injured and the front structure designs of the vehicles being alleged as the significant factor.

    The structural behavior of automobile seats and seatbacks is one of the factors often examined in investigating injuries to a vehicle's occupant(s) in crashes.

    Airbags in modern automobiles have been around for many years and their record in improving occupant safety in crashes is generally well accepted. However, many questions still arise regarding their deployment and performance in crashes.

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