A California failure analysis expert witness was asked to perform a glass failure analysis on a champagne bottle that had failed “spotnaeously”. Because champagne is under pressure and in glass, there are warnings not to use a cork screw to remove the cork. However, there are cases where the cork is stuck and people will […]
Safety Glass Expert Performs Tempered Glass Analysis
Glass failure analysis often requires understanding of safety glass. Normal window glass is in the annealed state. Therefore, it will break into large sharp shards that can injure a person who breaks through it. In order to reduce the probability of failure and the possibility of injury […]
Similarities of Fatigue Failures in Various Materials
A California materials expert has performed hundreds of materials failure analysis on a wide variety of materials. Surprisingly fatigue failures have the same appearance regardless of type of material. Above are three examples of fatigue. Upper left is a sample of a rubber fatigue failure. This is very similar in appearance to the CPVC pipe […]
California Failure Analysis Expert Witness Examines Failed Glass Pool Tiles
California glass expert performed a failure analysis on several broken glass tiles. These tiles were above the water line in a swimming pool. The failed tiles were removed and submitted for failure analysis. It was impossible to open the tiles to examine the fracture surface. The thin set mortar had “squeezed” into the crack and […]
Glass Fracture, Califirnia Glass ExpertPerforms Bottle Failure Analysis
California failure analysis expert witness was asked to perform a detailed failure analysis of a broken wine bottle. Glass fractography was used to determine the root cause failure mode. The failure originated at damage caused by the prop on the cork screw. The fact that there were two damage sites on opposite sides of the […]
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