Dr. David Tawfik is a chartered professional engineer and has been engaged by major project alliances, legal firms, contractors and asset owners to provide impartial advice and undertake expert investigations concerning the Procurement, Fabrication and Performance of Construction Materials used in transportation infrastructure, rail, water, mining, maritime and energy sectors.
Dr. Tafik's technical competence includes welding and joining, metallurgy, forensic engineering, thermal-mechanical analysis, corrosion analysis, non-destructive testing and condition monitoring. Dr. Tawfik has presented and published technical papers at international conferences, congress, forums and peer reviewed journals respectively.
Robert N. Anderson, PhD, PE, has more than 35 years of experience in Forensic Materials and Metallurgical Consulting specializing in Corrosion and Thermodynamics, Failure Analysis, Engineering Design, and Accident Analysis. Dr. Anderson is an Emeritus Professor in Materials Engineering who offers Expert Witness services to legal firms representing both plaintiff and defendant. A court appointed expert, Dr. Anderson is available for civil and criminal forensic metallurgical cases. He has extensive deposition and courtroom experience having been retained over 50 times in the last 5 years.
Areas of Expertise:
Medical Device Failures
Electrical Fire Source
Memberships & Affiliations:
American Academy of Forensic Sciences, Fellow/Past Director
National Academy of Forensic Engineers, Fellow/Past President
International Board of Forensic Engineering Sciences, Diplomate, Past President
By Richard N. Anderson (Editor) & Richard W. Mclay (Editor)
Engineering Standards for Forensic Application presents the technologies and law precedents for the application of engineering standards to forensic opinions, discussing Fundamentals, Disciplines, Engineering Standards, The Basics and the Future of Forensics. The book explores the engineering standard and how it is used by experts to give opinions that are introduced into evidence, and how they are assumed to be the best evidence known on the topic at hand. Final sections include coverage of NFL Brain Injuries and the Flint Water Crisis. Examples of the use of engineering standards are shown and discussed throughout the work.
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.
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:
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
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
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
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
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)
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.
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.
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.
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.
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.
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
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.
Quality Forensic Engineering, LLC is a full-service forensic engineering and accident reconstruction firm, providing engineering support to clients in the areas of collision reconstruction, premises liability, and product liability. With over 20 years of experience for each of our senior engineers, we utilize the latest technology for documenting evidence and retrieving data including FARO 3D scanning, aerial drone imaging, and black box downloads. Our forensic engineers are mobile, supporting clients throughout the U.S. Headquartered in Tallahassee, Florida with a satellite office in Jacksonville, Florida, we look forward to serving you.
Dr. Brian Pfeifer, P.E.,
With over 20 years of experience investigating and testifying in cases involving a variety of forensic engineering issues, Dr. Pfeifer is a leading expert in accident reconstruction, roadside safety, maintenance of traffic, and analysis of mechanical systems, and product failures. Dr. Pfeifer has a strong background in the design, development, and implementation of roadside safety hardware including guardrails, bridge rails, and crash cushions. Over 33 patents have been filed worldwide on behalf of Dr. Pfeifer and associated colleagues who invented safer guardrail systems and terminals, vehicle storage systems, shipping container handling systems, and material handling and storage methods. Dr. Pfeifer has published numerous papers to various organizations including the Transportation Research Board and Port Technology International, covering topics ranging from new guardrail systems, energy-absorbing guardrail terminals, and breakaway mechanisms incorporated in traffic signs to material handling technology. Dr. Pfeifer’s expertise has been shared with many organizations such as the Florida Justice Association, Palm Beach County Justice Association, American Bar Association, Defense Research Institute, and Alabama Defense Lawyers Association with presentations he’s made on topics including vehicle collisions, bicycle accidents, roadway constructions zones, and accident reconstruction expert witness utilization. Dr. Pfeifer is a registered Professional Engineer in three states and stays current with learning new technology in the field of forensic engineering. He has refined his skills and knowledge of accident reconstruction and roadside safety by taking dozens of continuing education courses over the span of his career.
Tractor / Trailer Collisions
Black Box Analysis
Product Failure Analysis
Maintenance of Traffic (MOT) evaluation
Restraint System Analysis
Ms. Traci Campbell, P.E., CXLT,
Ms. Campbell is an Industrial engineer with specialties in industrial accident reconstruction, including slip, trip, and fall analysis, human and environment interaction, forklifts, applicable standards and guidelines, and workplace-safety issues. Her expertise also includes vehicular accident reconstruction involving automobiles, trucks, tractor-trailers, and recreational vehicles, as well as, product failure analysis.
Slip / Trip / Fall
Retail Facility Safety
Human and Environment Interaction
ANSI / ASTM / Building Codes
Guarding & Warnings
Forklifts and Construction Equipment
Theme Parks / Recreation Safety and Facilities
Tractor / Trailer Collisions
Airbag and Black Box Analysis
Product Design / Failure Analysis
Mr. Chris Yates, P.E.,
Mr. Chris Yates, P.E., is a Mechanical Engineer with specialties in accident reconstruction, including electronic module downloads for both automobile airbag modules and tractor-trailer electronic control modules. His expertise includes auto accidents, tractor-trailer accidents, bicycle accidents, pedestrian accidents, and other roadway accidents. His expertise also includes seat belts, occupant kinematics, product failure analysis, and other general engineering issues.
T. Kim Parnell, PhD, PE is a Professional Mechanical Engineering consultant and is Principal & Founder of Parnell Engineering & Consulting (PEC). Dr. Parnell holds PhD and MSME degrees in Mechanical Engineering from Stanford University, a BES from Georgia Tech, and is a registered Professional Mechanical Engineer (PE) in the State of California. He is an ASME Fellow, an IEEE Senior Member, and a Member of ASM and SAE. Dr. Parnell is Past-Chair of the IEEE Santa Clara Valley Section (IEEE-SCV) (over 12,000 members) and Past-Chair/Board Member of the IEEE Consultants' Network of Silicon Valley (IEEE-CNSV). Dr.Parnell is an experienced Expert Witness, has provided testimony in both trial and deposition, and has authored numerous expert reports and IPR declarations. He has worked extensively as an expert in medical devices, patents, product failure, product liability, and personal injury. Dr. Parnell has been retained in medical device litigation cases that are in the news and adjudicated in MDLs. Products include IVC Filters (Inferior Vena Cava Filters), Pelvic Mesh, Transvaginal Mesh, Intragastric Abdominal Balloon Weight Loss Systems, Back Pain Reduction Systems, and others. Dr.Parnell brings both breadth and depth of experience to clients. He has over 34 years of professional consulting experience, has taught both graduate and undergraduate University classes (Visiting Professor at Stanford University & Adjunct Professor at Santa Clara University), and has also worked in industry. His industrial positions include sectors such as software, hardware, medical devices, and telecommunications equipment. He has extensive experience in areas including patents, medical devices, Nitinol shape memory alloy material, mechanical failure of products or equipment, and material failure by fracture or fatigue. Dr.Parnell frequently works with early-stage companies as both a technical consultant and a business advisor in sectors including medical devices and flash memory technology.
Areas of Expertise:
Patents and Intellectual Property
Finite Element Analysis (FEA) & Simulation
Cell Phones, Personal Electronic Devices
Gas Leaks, Pipe Failure, Vapor Cloud Explosions
Shape Memory Materials
Heavy Truck Crashworthiness
Product Design Refinement
Piping, Pressure Vessels
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
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.
Marc H. Richman, ScD, PE, has been actively engaged in Forensic and Consulting Engineering for over 45 years. He has personally supervised and conducted over 3,000 investigations for individuals, attorneys, insurance carriers, industrial firms, state and federal agencies and commission, and police and fire departments.
Dr. Richman's educational background at MIT was physical metallurgy and failure analysis. He taught as an instructor at MIT and ran the analytical Metallography laboratory there as well as set up the electron microscopy laboratory at MIT. At Brown, he was director of the Central Electron Microscopy Lab and was very active in Failure Analysis and Fractography as well as Analytical Metallography.
Dr. Richman has investigated failures of offshore drilling rigs and propeller shaft failures(Bethlehem Steel Shipbuilding), helicopter crashes on the Pan Am building and at Newark Airport (NY Airways and Lloyds of London), construction elevator failures (Gilbane Construction and Aetna), bridge failures (Mystic River Bridge upper deck - MassPort Authority), hydroelectric plant shaft failures (McCallum Enterprises), pressure vessel and machinery failures, military equipment and weapons failures, building failures and collapses (US Navy and others), and steel mill production (Italy).
Litigation Support - Marc H. Richman has testified for both plaintiff and defense in about 175 trials in civil and criminal courts. He has served as Technical Advisor to the US District Court (RI) on patent cases (Hon. Raymond Pettine) and has been a consultant for the US Naval Applied Science Laboratory, the US Army Materials and Mechanics Research Center, Battelle, Texas Instruments, etc.).
Dr. Richman has provided expert testimony from product malfunctions, to fatal car accidents, to peeling paint on the Pell Bridge, to the Pan Am Building helicopter crash, to water and gas main failures, to metallurgical examinations of murder weapons.
Dr. Richard F. Lynch has over 35 years of industrial experience in all areas of Metallurgical and Material Forensic Investigations, including 11 years with a major metals producing and processing company. He serves as an Expert Witness / Consultant on Steel, Nonferrous Metals, and Non-Metallic Materials.
As a U.S. patent holder, Dr. Lynch has authored and/or presented over 60 technical papers on the properties and uses of galvanized steel, cast and wrought non-ferrous and ferrous products, pretreatments for painting metallic surfaces, product development and ASTM standards.
Dr. Lynch's client base includes attorneys and companies requiring failure analysis, metallurgical testing, or assistance with end product manufacture, metallurgical processing, casting, galvanizing, zinc production, surface treatments, metallurgical process licensing, international metals research and market research.
Areas of Expertise:
Standards / Specifications
Failure of Structural Materials, Fabricated Products, Fuel Tanks
Metal Pretreatments & Painting of Galvanized Steel
T. Rao Tipirneni has a M.S. in Metallurgy from Stevens Institute of Technology, with approximately 40 years of experience in Metallurgical Failure Analysis. He has been President of Long Island Testing Laboratories, Inc., specialists in Aerospace Metallurgical Testing, since 1985.
Litigation Support - Mr. Tipirneni provides expert testimony to counsel representing both plaintiff and defendant. His services include laboratory testing, written reports, depositions, and trial testimony as needed.
Dr. David W. Riley is an Extrusion Analysis & Plastics Rheological Consultant. Dr. Riley has spent over nineteen years as a consultant in the field of Plastic Processing. He has over forty years of experience in developing Polymer Defect Technology and fifteen years in developing the field of Plastic and Polymer coefficient of friction related to the feed section of the extruder.
Areas of Expertise:
Analytical Instrumentation Adaptation to Processing Equipment
Extrusion Equipment: Design & Analysis of Production
Engel Metallurgical LTD engineers and metallurgists offer laboratory testing services to determine Material Performance and Material Performance Expectation. All tests are performed according to government and/or applicable industrial standards, including ASTM, military, and other specifications.
Engel Metallurgical clients include attorneys, insurance company representatives and members of a broad range of industries, including chemical, agricultural, aviation, power generation, construction, transportation and manufacturing.
Litigation Support - Attorneys requiring reliable information rely on Engel Metallurgical. Les Engel and his team of specialists sort through intricate details of structural and material failures, accidents, manufacturing defects and other unexpected incidents that lead to lawsuits, with involvement from initial discovery through court appearances, if necessary.
In 2003, Engel Metallurgical earned ISO/IEC 17025 accreditation from the American Association for Laboratory Accreditation (A2LA). This accreditation officially recognizes Engel Metallurgical proficiency in quality and details, and helps ensure that its findings will carry more weight in clients’ litigation cases.
Engel Metallurgical Ltd. is listed with the Minnesota Association For Justice (formerly Minnesota Trial Lawyers Association) as an expert in the field of metallurgy. Their engineers have extensive experience with deposition and trial. Their high ethical and scientific standards complement our expertise in providing sound, unbiased opinions on technical issues, including:
Inspection: Equipment and Components Inspected on Site
Quality Control Efforts
Product Claims, Product Recalls
Corrosion Resistance Coatings Selection
Non-destructive Testing Procedures
US / Foreign Specifications Equivalents
Material Property Design Limits
Principal, Lester P. Engel, Jr., PE, is a Metallurgical Engineer with over 40 years of experience leading the company's detailed, quality-focused testing and services. He oversees the company's lab, continually adding new equipment and techniques.
Mr. Engel also has experience as the chief metallurgist for Brown Boveri Turbomachinery and as a metallurgical engineer for the Aircraft Engine Group of General Electric, where he focused on material selections for hot aircraft and marine gas turbine components. His GE career began in Nuclear Systems Programs, where his work included serving as the principal investigator on three NASA programs.
Les Engel specializes in materials application, failure analysis, R & D program management, materials and process specifications, engineering standards and procedures, laboratory design and operation, data analysis and personnel, and budget management. He continues to personally perform failure analysis on aircraft and land turbines, generators, boilers, steel products, metals, cermets, plastics, and other materials.
With high ethical and scientific standards, Les Engel offers sound, unbiased expert analysis and testimony on technical issues. He provides expertise to insurance companies and counsel representing both plaintiff and defendant.
James A. Brusso, PhD, PE, has more than 20 years of experience in processing/properties of materials, materials characterization and behavior, materials specifications, mechanical testing, failure analysis, machining of materials, and laboratory design and operation. He is also Engel Metallurgical's Technical Manager and Quality Manager.
Dr. Brusso brings keen expertise to Engel Metallurgical and its clients, performing failure analysis; rendering expert opinions, giving depositions and testimony for litigation support; providing technical support for materials and process development and improvement; and developing and reviewing various product designs, materials, and process details.
Dr. Brusso has worked with Engel Metallurgical since 2000. Prior to that, he held several positions with The Timken Company in Ohio, where his responsibilities included establishing the company’s machinability testing laboratory, team leader for product development projects, managing the company's application metallurgical laboratory, and providing technical review of internal processing and testing standards to satisfy ISO 9000 / QS 9000 registration.
Arun Kumar, Ph.D. has 34 years of experience in Metallurgy, Materials Science and Failure Analysis of Metallic and Non-Metallic Materials at Rockwell International, Hughes Aircraft Company and EAG Laboratories. He manages and supervises approximately 17 engineers and technicians performing a variety of analytical services and failure analysis.
Dr. Kumar provides metallurgical consultation, performs failure analysis and serves as an expert witness in product liability trials involving materials failures. He has extensive experience in metallurgical failure analysis of aircraft, helicopter, automobile and motorcycle components, machineries, medical implants, machine tools and household appliances.
Paul Eason is a Licensed Engineer, Nationally Certified Fire & Explosion Investigator and Forensic Consultant. His expertise comes from a strong background in industry and academia. In addition to his consulting practice, he is a professor in the Mechanical Engineering program at the University of North Florida, and maintains a graduate faculty appointment in the Materials Science and Engineering Program at the University of Florida.
Dr. Eason has testified in numerous trials and depositions in the following practice areas: Product Design & Manufacturing Analysis, Metallurgy & Materials, Fire & Explosions and Industrial Accidents