This subject deals with the failure of a machine component during operation. There are several types of mechanical failures, such as excessive deflection, ductile fracture, brittle fracture, impact, relaxation, thermal shock, wear, corrosion, and material fatigue.
Our experts are adept in many areas of mechanical failure, one of which is failure analysis. This can entail numerous types of research, including engineering investigations, equipment fires and explosions of items such as pressure vessels, commercial boilers, furnaces and ovens, heaters, vehicles, and other equipment and appliances.
Our experts are also mechanical engineers with extensive experience in product liability, manufacturing, accident investigation and reconstruction, and fire cause and origin. These mechanical failure experts offer consulting services in class actions and other litigation involving equipment and product integrity. This includes medical equipment product safety and manufacturing equipment performance and safety evaluations. They have served as experts in investigations involving accident reconstruction, product liability, mechanical system evaluations, traffic signal issues, as well as construction and mining equipment accidents.
The professional experience of these experts includes work in product and process development engineering in numerous industries. They have been design engineers, project engineers, manufacturing liaison engineers, program managers, engineering managers and directors, and heads of supply change management.
ForensisGroup has teamed with law firms, insurance companies, as well as other organizations to find credentialed and knowledgeable expert witnesses since 1991. Browse the list of expert witnesses or a related discipline below and Submit An Expert Request Form to find out more about our Mechanical Failure Expert Witnesses.
A former employee of the City of Tampa filed an action for unlawful retaliation in violation of the Americans with Disabilities Act ("ADA") and the Florida Civil Rights Act ("FCRA").Plaintiff was employed as a City Solid Waste Collection Driver. At some time during his employment, he was diagnosed with a medical condition that allegedly limited one or more of his major life activities. He filed a Charge of Discrimination with the Equal Employment Opportunity Commission ("EEOC"), asserting that the City failed to reasonably accommodate his disability. He then filed, pro se, a lawsuit under the ADA for disability discrimination against the City. Plaintiff was still employed by the City when he filed his pro se lawsuit.During the ADA lawsuit against the City, Plaintiff was involved in an accident involving the City's solid waste truck. While waiting to unload debris at a transfer station, Plaintiff exited the truck. He thought he had pulled the parking brake prior to getting out of the truck. However, while he was out of the vehicle, it began moving forward, went over a speed bump, and struck the vehicle causing damages. There were no injuries.The City ultimately concluded that Plaintiff hadn’t set the brake and issued a "Letter of Counseling" related to the incident because the accident was preventable. The City relied on the recommendation from its safety review committee, which concluded that Plaintiff hadn’t pulled the parking brake, as well as a traffic report and statements from a mechanic who inspected the vehicle after the accident.Plaintiff took the deposition of the City's Solid Waste Director as part of his pro se lawsuit against the City, which was still pending. The complaint alleged that within a month of his deposition, Plaintiff was given a notice of disciplinary action, accusing him of making false statements, and thus violating the City's policy on "Moral Turpitude."At a hearing, the City showed video footage of the accident, which revealed Plaintiff exiting the vehicle without setting the parking brake. Based on the video, the City terminated Plaintiff's employment for intentionally lying to the police and the City when he repeatedly maintained throughout the investigation and grievance process that he had pulled the parking brake.Plaintiff alleged that the City's stated reason for terminating his employment was "not worthy of belief." His retaliation claims were premised on the timing of Director’s deposition and Plaintiff's termination. According to Plaintiff, these two events were causally related. However, Plaintiff then admitted that he didn’t pull the parking brake. Plaintiff argued that the real reason he was terminated was that he pursued the initial discrimination case against the City.The City designated a mechanical engineer specializing in accident reconstruction as an expert witness. The expert opined that the driver of the City’s solid waste truck didn’t engage the parking brake prior to exiting the vehicle at the time of the accident. In addition, the expert said that the driver failed to put the truck in neutral and didn’t follow proper procedures.The accident reconstruction expert also concluded that the driver had a habit of not parking the vehicle properly prior to exiting because he’d done the same thing five minutes before the accident; that he knew, or should have known, that he left the vehicle in drive as he must have put it in neutral after the accident when he engaged the parking brake; and that he knew, or should have known, that he didn’t put the parking brake on since he engaged the parking brake immediately after the accident.Plaintiff moved to strike the expert’s report in its entirety. He argued that the expert improperly opined on Plaintiff's credibility; he didn’t have the adequate expertise to testify about Plaintiff's "habit" or what Plaintiff "knew or should have known;" and the expert’s testimony as to the causation of Plaintiff's accident wouldn’t assist the trier of fact.U.S. District Court Judge James S. Moody Jr. wrote in his decision that before permitting expert opinion testimony, the court must make certain that the expert employs "in the courtroom the same level of intellectual rigor that characterizes the practice of the expert in the field," quoting Kumho Tire Co.The judge found that the expert's opinion must be excluded under Daubert because portions of his report were based on pure speculation. More importantly, the entire report would not assist the trier of fact. The expert, who was experienced in mechanical engineering and accident reconstruction, wasn’t qualified to testify about Plaintiff's "habit" and state of mind. His opinions weren’t based on sufficient facts or data. Moreover, Judge Moody said that no expert is truly qualified to opine on a person's credibility or state of mind—determinations typically left to the finder of fact.The expert testimony, like the expert's report, wouldn’t assist the trier of fact because Plaintiff admitted that he failed to set the parking brake. The part of the expert's report where he opined that Plaintiff didn’t engage the parking brake, didn’t put the vehicle in neutral, and didn’t follow proper procedure was superfluous because Plaintiff conceded these points.The expert's opinion, which focused on the reasonableness of Plaintiff's actions—and which was clearly not available to the City at the time that it made the decision to terminate Plaintiff—would offer no assistance to the trier of fact. Plaintiff's motion to strike Defendant's expert witness and his expert report was granted.
I have more than 35 years of experience in the field of electrical engineering with expertise in silicon, GaAs, PCBs, MEMS, and optoelectronics. I am familiar with Failure Analysis (FA) and reliability of integrated circuits, PCBAs and components; as well as failure analysis of silicon micromachined devices (MEMS). I have trained in and developed new failure analysis techniques and metrologies, and have designed for manufacturing. I have over 15 years' experience providing consultations, courtroom testimony, and deposition as an electrical engineering expert witness.
I have over 30 years experience in mechanical engineering with a particular focus in the investigation and faliure analysis of child safety seats, seatbelts, seatbacks, restraint systems, industrial equipment, airbag deployment, airbags, black box data retrieval, crash data retrieval, equipment failure, forensic analysis, forensic engineering, lawnmowers, product failure, restraints, root cause analysis, seating, household appliances, forklifts, ladders, scaffolds, machine guards, wheelchair lifts & occupant restraints, patient lifts, and consumer products. I have offered my services for more than 20 years as a mechanical engineering expert witness with deposition, courtroom testimony, and consultations.
I have over 40 years of experience in gas turbine design and development that encompasses aviation, energy, marine and advanced military markets. I have developed turboshaft, turboprop and turbofan engines for a diverse application base that includes helicopters, fixed wing aircraft, auxiliary power units, stationary power generation, ships and super-sonic aircraft. I have successfully taken a broad range of commercial and military engine programs from initial concept through the certification process and into production, which included the maintenance and safety of operation for fielded engines. My flight safety responsibilities involved both conducting and overseeing accident investigations and engine failure analysis and support of ongoing litigation. I have authored and presented several professional papers on gas turbine design, hold multiple patents and am currently working on advanced propulsion system technologies targeting next generation manned and unmanned aircraft. I have spent more than 20 years providing consultations, deposition, and courtroom testimony as an aerospace engineering expert witness.
With more than 35 years in the field of mechanical engineering, I have an expertise in fracture mechanics, metallurgy, fitness-for-service assessments, failure analysis, stress analysis, remaining life assessments, welding, and pipeline integrity. I have spent over 20 years providing deposition, consultations, and courtroom testimony as a mechanical engineering expert witness.
I have over 20 years experience in the field of fire and explosion analysis. My expertise includes fire, fire reconstruction, electrical failure analysis, mechanical failure analysis, metallurgical failure analysis, construction failure analysis, product failure analysis, underwater investigations, underwater locations, side scan sonar, and vessel recoveries. I am offering my services as a fire and explosions expert witness.
I have over 25 years experience as a mechanical and professional engineer with expertise in accident investigation related to vehicles, equipment, products, product design, and other mechanical systems and components. I have provided consultations, deposition, and courtroom testimony for over a decade as an accident reconstruction expert witness.
With more than 35 years experience in Plumbing & Fire Suppression, my expertise is in residential, commercial, and industrial plumbing, heating, and sprinkler systems. I have additional knowledge in fuel gas codes, backflow rules, DOB filing procedures and DAR filings. I am offering my services as a master plumber expert witness.
As a structural engineer with more than 35 years of experience, I have a focus in property casualty damage issues including: structural failures and defects, water intrusions, roof distresses, origin and cause of fires, mechanical failures, electrical failures, and trip and fall conditions. I have also spent over 10 years as a structural engineer expert witness.
I have over 30 years experience in the field of Elevator and Escalator Inspections with expertise in ensuring absolute compliance with code in order to assure the riding public of vertical transportation equipment’s fitness for operation, performing field safety and code compliance audits, performing jobsite safety surveys and employee audits, and performing property condition assessments. I have also provided consultations and deposition as an elevator and escalator inspections expert witness.
I am a mechanical engineer with more than 25 years experience as a gas turbine, aviation and marine engine expert at every major world-wide OEM in the gas turbine engine industry. I am experienced with flight, marine, automotive and industrial engine and have worked as a US Navy Engineering Duty Officer. I am also the holder of six (6) patents in gas turbine engine design. I have experience with military engine qualification, commercial engine certification and FAA CFR regulations. I have significant experience with mechanical component design, testing and forensic investigation of component failure. I have worked with field investigations and warranty claims. I have been the lead investigator on claims from foreign navies and have conducted on-site investigations. I have also worked with laparoscopic and ultrasonic medical device design, testing and FDA 510k approval at a world-leading OEM. I have been the team leader for an ultrasonic laparoscopic device launch for leading Fortune 500 company. I have conducted pre-clinical and field hospital trials and have supported successful component testing at CSA labs. I have opined in gas turbine and automotive personal injury cases. I have offered my services for over 10 years as a mechanical engineering expert witness with consultations and deposition.
My career of over 30 years has been focused on mechanical engineering with a particular expertise in the cause and origin of auto, truck, tractor-trailer, bus, motorcycle, snowmobile, bicycle, and other non-motorized vehicle accident investigations; accidents related to design or manufacturing defects and improper use of products; assessment of construction accidents, including examination of equipment, equipment use, safety features and guarding; integrity analysis of commercial and residential buildings; and slip and fall accidents, walkways, stairways, ramps, pavement, and floors. With more then 15 years as a mechanical engineering expert witness in New York, I have offered consultations, courtroom testimony, and deposition.
My background of over 10 years as a mechanical engineer and industrial hygienist has been focused in heating, ventilation and air conditioning (HVAC) design, construction, and specification of commercial buildings, including code compliance, LEED compliance, and building performance compliance. I have additional expertise in mold sampling and remediation, performing indoor air quality evaluations relating to HVAC, building envelope, and the environment as well as performing forensic evaluations involving HVAC and refrigeration equipment and systems. I have additional knowledge in vehicular accident investigation and reconstruction of low-speed, bicycle, and pedestrian accidents, as well as failure investigation and analysis of consumer products, industrial equipment and left safety systems. My experience also includes having spent over 5 years as a mechanical engineering and industrial hygiene expert witness in Washington by providing such services as consultations, deposition, and courtroom testimony.
My prior experience in the field of Mechanical Engineering has been focused on engineering design, prototyping, and manufacturing. My past large design projects have been devices which people interact with, mostly in athletics, but also some smaller devices. My projects include the commercialization of a ski binding plate designed to reduce the probability of suffering an ACL injury while skiing, a 250 million dollar problem in the USA affecting over 20,000 people a year. I am available in Northern California as a mechanical engineer consultant and sports equipment expert witness.
I have over 30 years experience in engineering specializing in fires; explosions; fire protection; civil, electrical and mechanical failure analysis; design; construction; management of industrial plant production equipment; material handling machinery; and explosive mining equipment. My areas of expertise include fire cause and origin, explosions, large loss expert coordination and related mechanical and electrical failures. I have previously been deposed and have testified as an expert witness.
I have more than 45 years of experience in the Elevator Industry with expertise in providing due diligence and maintenance audits on exiting and new equipment. Previously to becoming President of an elevator consulting company, I have worked as President of the management and sales of elevator control systems, and also performed maintenance of over 1,400 elevators. Many elevators were new constructions, as well as some to be modernized and repaired. I have over 10 years of expert witness experience with consultations, deposition, and courtroom testimony.
I have more than 35 years of experience in the field of Elevators, Escalators, and Residential Lifts maintenance. I have been the Owner of a company that provides repair, refurbish, and modernization services on equipment. I oversee the day-to-day scheduling of inspections, routes of repairs, proper distribution of payroll, and installation of residential lifts.
I have more than 10 years in the fields of Failure Analysis, Accident Reconstruction, and Mechanical Engineering. I have investigated, analyzed, and reconstructed hundreds of accidents across the United States involving vehicles, machines, mechanical systems and industrial equipment. I have also critiqued product infringements within the scope of patent protection. I am a Licensed Professional Engineer and United States Patent Agent. My work is performed in support of litigation, product recalls, insurance investigations, industrial problem solving and intellectual property disputes. I have provided expert testimony in numerous legal jurisdictions and I am a member of several professional organizations. I have over 5 years expert witness experience with consultations, deposition, and courtroom testimony.
P.E. – Consulting expert with more than 35 years' experience in the field of mechanical engineering as a machinist and assembly mechanic. Has designed and put into operation mining and construction machinery, inspection and test equipment, automated production machines, and materials handling devices.
I have more than 30 years experience in the fields of Product Design and Failure Analysis with expertise in the manufacture of the subject part. I have experience with analyzing the physical stresses that arise in a product under various loading conditions, and in determining if the design is sufficient to survive such loads, and investigating product failures and accidents analysis from a fundamental engineering perspective, often applying finite element analysis. I have provided consulting experience in the energy, construction, industrial, thermal fatigue, medical, transportation, crane failures, marine, commercial, utility and residential industries. I have over 15 years expert witness experience with consultations, deposition, and courtroom testimony.
I have more than 45 years experience in the fields of mechanical, environmental, and civil engineering with expertise in hydroelectric power and shipyard engineering. I have experience with design, procurement, installation and testing of hydraulic turbines; as well as fish screening systems, hydropower, performance testing, and energy efficiency. I have over 5 years expert witness experience with consultations and deposition.
I have over 30 years experience in the field of Mechanical Engineering. My extensive experience includes engineering investigation, failure analysis, product liability, intellectual property, manufacturing, accident investigation and reconstruction, fire cause and origin. My additional vehicle experience includes commercial vehicles, automobiles, RVs, buses, trains, agricultural, and construction equipment. I have prior expert witness experience.
I have over 35 years experience in the field of Failure Analysis. I have experience in engineering failure analysis, chemical analysis, mechanical fabrication, and other areas. My expertise includes: engineering investigations, fires and explosions involving industrial/commercial/household equipment, including tanks and pressure vessels, reactors, residential and commercial boilers and hot oil heat transfer systems, furnaces and ovens, heaters, kerosene heaters, lighters, gaseous leaks, fuel volatility and contamination, tank trucks, propane, etc.; vehicular accidents involving rollovers, rear-enders, sudden pullouts, jack-knifes, pedestrian impacts, pedestrian collisions, back-ups, lost cargo, road debris, and low-hanging wires; mechanical failures involving bolts, threaded connections, bolted and unbolted tanks, pressure vessels, hydraulic systems, cryogenic tanks and lines, pumps and valves, protectors, ladders, hoists, scaffolds, etc. I have more than 30 years expert witness experience with consultations, deposition, and courtroom testimony.