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Failure Analysis.


Our team analyzes and tests consumer products, manufacturing and commercial equipment, medical equipment and construction defects. We apply a rigorous scientific approach to determine how the failure occurred, how the failure appeared over time, and whether it was due to improper installation, user misuse, material defect, or manufacturing and/or design defect. We use state-of-the art equipment and software to determine failure analysis.




practice areas

Automobile + Tire Failures

Fire Cause + Origin

Full-Scale + Component Testing

Machine Accidents + Equipment Failures

Mechanical Defects 

Medical Device Failures

Oil + Gas Industry Incidents

Product Design Defects

procedures + processes

Fracture Mechanics

Fatigue Testing + Analysis

Analysis of Stress Corrosion Cracking

Metallurgical Analysis

Ductile + Brittle Fractures

Hydrogen Embrittlement

Surface Analysis (SEM, FTIR, X-Ray)

X-Ray Analysis

Micro & Macro-photography

Welding, Soldering & Brazing

Examples of our work.

theater seats

Have you sat in a seat that presented a problem? BEAR concluded that a mechanical component in the seatlift was inadequate in the theater seat photographed (in the top left quadrant). Each seat back was held in place by two bolts, one on each side, through a small metal tab. To determine the loads on the tab when the seat was

used by various persons of various sizes and weights, strain gauges were installed on an actual seat (pictured in the lower left quadrant) and peak loads were recorded. Field measured loads were also applied to a computer model of the tab (lower right quadrant) to examine peak stresses in the corner of the tab and the fatigue

limit of the seat. As predicted, the metal materials used were inadequate for creating the metal tab.

aircraft engine components

BEAR performed a dynamic analysis of various components of an aircraft engine. The parametric study of one component - a connecting rod - is shown above. Our goal was to determine how to reduce stress on the components to avoid critical stress for crack propagation. Using finite element analysis, our results determined the cause of failure in the engine and provided new pre-load specifications

to prevent future failure.

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