Glass expert performs a failure analysis on a broken drinking glass from a restaurant. As the glass was being filled with cold water, the drinking glass split into two equal halves. The failed drinking glass was made of thick glass, and its rim was tempered. A failure analysis was performed by a glass failure analysis […]
Failure Analysis Expert Examines Bottle Failure
Glass failure analysis expert witness prepared numerous bottle failures of “off the shelf” 12 oz beer bottles by over-pressuring them with a hydraulic pump. These tests were needed to generate bottle failures of a known origin in order to examine the crack patterns, the fracture surfaces, and the failure origins. Numerous bottles were broken, and […]
Failure Analysis of Failed Plastic Chair
Plastic Failure Analysis Expert performs a failure analysis on a plastic “lawn chair” that collapsed when someone sat in it. The right arm separated from the seat. Upper left is a photograph of the subject chair with the separated leg. Fractography, top center photograph, indicates that the failure was progressive (i.e. a fatigue failure). Examination […]
High Pressure Bottle Failure Analysis Tests
Glass failure analysis requires looking at failed bottles and determining the cause of failure. The failure analysis procedure includes carefully examining the crack pattern and the failure origin. It also helps to have failures with known causes to confirm the conclusions. In this case, bottles were purposely broken using hydraulic pressure. Their performance was documented […]
Glass Expert Performs Beer Bottle Failure Analysis
Glass failure analysis expert witness performs a failure analysis on a broken beer bottle. According to the witness t, e bottle “explosion” occured as the bottle was being set down. The glass expert examined the failed bottle and the failure analysis showed that the bottle failure resulted from damage to tbe knurl on the bottom […]
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