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fastener proof load? 3
- Thread starter scottmaha
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3
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The proof load of a fastener is the maximum load under which no permanent deformation occurs, i.e. all strain is elastic and recoverable. Materials specifications define the proof load as 90% of the yield strength.
During testing, the fastener is initially measured, then loaded to the proof load. The load is then released, and the part re-measured. The part meets the requirement if the part has not experienced any length change.
During testing, the fastener is initially measured, then loaded to the proof load. The load is then released, and the part re-measured. The part meets the requirement if the part has not experienced any length change.
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