Glass failure analysis expert witness performs a root cause failure analysis on a broken bottle. This bottle broke into pieces (lowerleft figure). A failure analysis determined that the failure origin was in the bottle neck under the plastic cap (lower right figure). The glass expert removed the cap and the the residual polish (top left figure). […]
CPVC Plastic Failure Analysis of Hot Water Pipe Fitting
Plastic failure expert performs a failure analysis on a failed CPVC 90° 3/4 inch elbow. This elbow was in a 150°F hot water recirculation system in a large facility. Plastic fatigue was the alleged cause of failure. However, a plastic failure analysis found no evidence of fatigue. Instead, the detailed root cause failure […]
Glass Expert Performs Failure Analysis of Glass to Metal Seals
California failure analysis expert and manufacturing engineer was engaged to perform a root cause failure analysis of shallow cracking in the seal glass. These glass to metal seals were made by one manufacturer and then sent out to another processor to be plated. The photograph on the left shows two sight glasses. The body of […]
Machine Controls: Factory Safety or Manufacturing Safety Issue
Factory safety expert witness was engaged to determine the cause of a worker injury to an experienced operator/supervisor. The superviser was threading the machine with plastic sheet material when her hand was crushed. The accepted practice for threading was to feed the plastic sheet from the top and reach underneath to pull it through while […]
Plastic Failure Analysis
Plastics failure expert performs a root cause failure analysis on a plastic automobile door handle. The handle is from a van’s sliding side door. The product failure occurred when the user was trying to close the van’s sliding door. This is a products liability issue because the handle failed in a brittle manner and a […]
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