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Chair Failure Analysis, Plastic Lawn Chair

January 11, 2016 By Tom Read Leave a Comment

A failed plastic chair was submitted to our failure analysis laboratory for examination. The right rear leg had broken off; however, the initial chair failure occurred on the left rear side. The left rear leg separated from the chair body due to poor bonding and molding porosity at the top of the leg. The failure […]

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

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

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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