4/23/2015· Failure Analysis

Weld Failure Analysis: Chair Failure Due to Inadequate Weld

By: Dr. Thomas Read

Read Consulting was asked to determine why a welded chair failed and caused injury to the person sitting in it.

2/17/2023· Failure Analysis

Design Defect Failure Analysis of Water Shut Off Valve

By: Dr. Thomas Read

When this type of valve is open a rubber seal around the valve stem prevents leaking. In this case, the poly acetate stem deteriorated due to the presence of hot chlorinated water This allowed water to leak out. Over time the leak rate increased.

4/12/2021· Failure Analysis

Glass Failure Analysis: Glass Oven Dish Failure

By: Dr. Thomas Read

The annealed borosilicate glass pie plate failed as a result of “thermal shock”. There were multiple origins for the failure, and these all initiated at damage sites on the bottom of the Pyrex baking dish. It appears that the bottom of the pie plate was convex. Thus, setting the dish down and moving it on hard (abrasive) surfaces such as tile or granite counters created bottom “rim” damage.