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You are here: Home / Archives for Manufacturing Defect

Failure Analysis of Glass Pot: Visions Cookware

October 5, 2011 By Tom Read Leave a Comment

A failure analysis  was performed on a broken 5 quart stove top glass pot. The origin was determined with optical microscopy, and the broken pot was assembled to show how cracking proceeded. The re-assembled pot is shown upside down in the upper left photograph. The failure originated at a preexisting “chip” on the interior at […]

Filed Under: Failure Analysis Tagged With: Cookware, Glass, Manufacturing Defect, Tempered Glass

Failure Analysis Expert Examines a Broken Champagne Bottle

May 25, 2011 By Tom Read Leave a Comment

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 […]

Filed Under: Failure Analysis Tagged With: Bottle, Champagne Bottle, Expert Witness, Glass, Manufacturing Defect

Glass Fracture, Califirnia Glass ExpertPerforms Bottle Failure Analysis

March 28, 2011 By Tom Read Leave a Comment

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 […]

Filed Under: Failure Analysis Tagged With: Bottle, Fractography, Glass, Manufacturing Defect

Failure Analysis of Failed Plastic Chair

January 3, 2011 By Tom Read Leave a Comment

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 […]

Filed Under: Failure Analysis Tagged With: Chair, Lawn Chair, Manufacturing Defect, Plastic

Nickel Sulfide Particles in Tempered Glass

November 28, 2010 By Tom Read Leave a Comment

Glass failure analysis expert witness performs a failure analysis on a tempered glass window. The failure was initiated by a nickel sulfide, NiS particle. The glass failure analysis expert was able to retrieve both halves of the failure origin. One side of the failure origin contained the protruding NiS particle. On the other side of […]

Filed Under: Failure Analysis Tagged With: Glass, Manufacturing Defect, Nickel Sulfide, NiS particle, Window Failures

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Read Consulting Failure Analysis

Thomas L. Read, PhD,
1435 Fulton Road Santa Rosa, CA
Phone: 707-494-5089
email: info@readconsulting.com

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Read Consulting Failure Analysis

Thomas L. Read, PhD,
1435 Fulton Road Santa Rosa, CA
Phone: 707-494-5089
email: info@readconsulting.com

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Registered Professional Engineer

Thomas L. Read, PhD., CEO
Registered Professional Engineer
Certificate No. MF002174
State of California.

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