Fatigue Expert Witnesses

Sunnyvale, California

Medical Devices, Intellectual Property - Mechanical Engineering, Equipment & Machinery, Medical Device, Nitinol, Biomedical, Patent, IP, Consumer Products, Failure Analysis, Fracture, Fatigue, Truck Rollover, Crashworthiness, Finite Element, FEA, Reliability, Cell Phone, IVC, Composite Material, Piping

T.Kim Parnell, PhD, PE is President of Parnell Engineering & Consulting. 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. Dr.Parnell is an ASME Fellow, an IEEE Life Senior Member, and a Member of NAFEMS, SAMPE, ASMI and SAE. Parnell is Past-Chair of the IEEE Santa Clara Valley Section (IEEE-SCV) (over 13,000 members) and Past-Chair/Board Member of the IEEE Consultants' Network of Silicon Valley (IEEE-CNSV). Vice-President of Silicon Valley Engineering Council (SVEC-ca.org) Dr.Parnell is an experienced Expert Witness, has provided testimony in both trial and deposition, and has authored numerous expert reports, ITC 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 ...

Durango, Colorado

Human Factors, Transportation - Distracted Driving, positive guidance, Fatigue, Sleep Deprivation, Visibility, expectancy, Autonomous Vehicles, Driver Assistance Technologies, Perception-Reaction Time, Looming, Drowsy Driving, Conspicuity, Sleep Deprivation and Shift Work, Human Performance and Behavior, Driver Actions, Advanced Driver Assistance Systems

Dr. Grugle is a human factors expert who specializes in cases involving human performance and behavior, particularly in motor vehicle collisions. Her areas of specialization include fatigue, sleep deprivation, and drowsy driving, as well as distracted driving, looming, visibility/conspicuity, and driver actions. Dr. Grugle has conducted hundreds of forensic investigations on cases involving these issues as well as cases involving roadway design (expectancy and positive guidance), and driver assistance technologies (forward collision warning, lane departure warning). Dr. Grugle is a Board-Certified Human Factors Professional (CHFP) with over 20 years of academic, research and industry experience in human factors engineering. She was awarded competitive human factors research grants from the National Science Foundation, the Ohio Department of Transportation, and the Cleveland State University Transportation Center and her research has been published in national and international pee...

Avon, Connecticut

Failure Analysis, Products Liability - Metallurgy, Materials Science, Forensic Engineering, Corrosion, Fatigue, Fracture, Pipe/Tube/PEX/CPVC, Valve, Bolt, Coupling, Boiler, Power Plant, Quality, Weld, Aerial Lift, Hoist, Wire Rope, Fire Protection, Plumbing, Construction Defects

Mr. Anderson is the founder of Advantec Engineering LLC and provides expert consultation, laboratory testing and analysis, and litigation support regarding materials failure analysis, forensic engineering investigations, corrosion, and structural analysis. He has more than forty years of professional engineering experience. Mr. Anderson has provided engineering support and/or testimony for cases involving product liability, industrial accidents and equipment failures, commercial and residential accidents and equipment failures, bridge structures, and aircraft, marine, and vehicle accidents. He has also provided expert testimony and/or litigation support in cases involving flow accelerated corrosion, stress corrosion, corrosion fatigue, pitting, weld defects, and fitness for service of large industrial components, commercial products, and consumer products. Mr. Anderson is especially skillful at translating highly complex and technical information into something understandable by ...

Boynton Beach, Florida

Transportation, Accident Reconstruction - Trucking, Trucks, Commercial Vehicles, Truck Safety, Overweight, tank truck, weight restrictions, hazardous materials, compliance, fatigue, work zone, distracted driving, cargo tank, impaired driving, rollovers, Data Q, DOT, Driver qualifications, OSHA, loading

Thought leader on trucking and commercial vehicle safety and accident reconstruction. Lieutenant and Commanding Officer, Massachusetts State Police Commercial Vehicle Enforcement Section (2010-2022). Certified accident reconstructionist. Licensed attorney. Experienced expert and fact witness.

Saint Augustine, Florida

Metallurgy, Failure Analysis - Metallurgy, Products Liability, Coatings Inspection, Welding Inspection, Slip and Falls, Material Science, Forensic Engineering, Corrosion, Fatigue, Fractures, Bolt Failures, Weld Failures, Construction Defects

Professional Experience Court qualified technical expert in criminal and civil court, deposition and trial experience. Extensive experience in the field of failure analysis involving a variety of products, components, and materials utilized in both industrial and consumer applications. Experience in inspection and failure analysis of building materials. Proficient in microscopic analysis techniques and digital imagery. Proficient in destructive and non-destructive testing techniques and procedures in accordance with the applicable American Society of Testing Materials Standards. Direct experience in the field of materials thermal processing and procedures. Expert in material science, forensic engineering, corrosion, fatigue, fractures, bolt failures, weld failures andconstruction defects. Professional Licenses  Registered Professional Engineer: P.E. #51375 Florida (1997- Present)  Certified Welding Inspector: C.W.I #07060051 (2007-Present)  Certified AMPP Coating Inspector Level...

Atlanta, Georgia

Failure Analysis, Mechanical Engineering - Forensic Engineering, Product Assessments, Corrosion, Laboratories and Testing, EDR Technician, Metallurgy, Fatigue, Damage Consistency, Fracture Toughness

Mr. Don Halimunanda holds B.S. and M.S. degrees in Mechanical Engineering and is a registered Professional Engineer in Alabama, Georgia, Tennessee, North Carolina and South Carolina. He has over 22 years of experience in forensic engineering, general failure analysis, testing, and design improvements. Mr. Halimunanda has inspected and diagnosed the root causes of a wide range of issues, including material failures in mechanical design, equipment malfunctions due to defects, improper installations, misuse, and poor maintenance. Additionally, he has been involved in accident reconstruction and is a licensed and trained data collection technician. Mr. Halimunanda has conducted various accident analyses related to component failures in vehicles and industrial and process equipment. In addition, he has investigated premature component failures during accidents that resulted in injuries and fatalities. Beyond accident investigations, he has also evaluated poor equipment performance th...

Windsor, Ontario

Human Factors, Transportation - Driver distraction, Distracted driving, automated, autopilot, fatigue, cellphone, accident, behavior, perception reaction times, trucking, reaction times, Mobile, multitasking, driving, drowsiness, autonomous driving, self-driving, behaviour, PRT, attention

Dr. Francesco Biondi is a Human Factors specialist and expert witness with extensive experience analyzing how attention, perception, cognitive workload, and decision‑making influence driver behavior and accident outcomes. His work spans distracted driving, human‑machine interaction, driver monitoring, and the behavioral mechanisms that contribute to crashes in both manually driven and partially automated vehicles. A core area of Dr. Biondi’s research focuses on driver distraction and over‑reliance on partially automated driving systems, including Tesla Autopilot and other Level 2 systems. His studies investigate how automation affects driver attention, situational awareness, hazard detection, trust, misuse, and fallback performance. He frequently evaluates cases where questions arise about automation complacency, driver disengagement, system alerts, and human‑factors expectations in automation‑related crashes. Dr. Biondi has served as an expert witness in both Canada and the United ...

Richmond, Virginia

Human Factors, Slip Trip & Fall - Behavioral Safety, Warnings, Occupational/Industrial Safety, Vehicle Operator Behavior, Fatigue, Drowsiness, Duty Status, Attention, Glance Patterns, Electronic Device Use, Drugs & Alcohol, Regulations, Advanced Driver Assistance Systems (ADAS), Automated Driving Systems (ADS), Infotainment Systems, Driver Sleep Patterns

Dr. Jeffrey Hickman has a B.S. in Psychology from the University of Florida and a Ph.D. in Clinical Psychology from the Virginia Polytechnic Institute and State University. His Ph.D. research focused on behavioral safety and safety in large-scale systems. After completing his Ph.D., Dr. Hickman was employed at the Virginia Tech Transportation Institute for 18 years. He has considerable experience assisting clients to understand human factors issues related to warnings, slips/trips/falls, occupational/industrial safety, and vehicle operator behavior. Dr. Hickman's safety research and experience include human factors, behavior, fatigue, drowsiness, duty status, attention, glance patterns, electronic device use, regulations, drugs and alcohol, warnings, advanced driver assistance systems (ADAS), automated driving systems (ADS), and many other safety technologies. Dr. Hickman investigated the effects of visual displays and infotainment systems on driver attention. His research on dri...