Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:

ASTM D7791 – Uniaxial Fatigue Properties of Plastics

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ASTM D7791 covers the determination of dynamic fatigue properties of rigid and semi-rigid plastics in uniaxial loading.

Specimens of rectangular or circular cross section are gripped and then run loaded cyclically in either tension or compression. Testing continues until the specimen ruptures in the gage area

These tests can be used to determine the effect of processing, surface condition, and stress on the fatigue resistance of plastic material subjected to uniaxial stress for relatively large number of cycles.

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References: ASTM D7791 – Standard Test Method for Uniaxial Fatigue Properties of Plastics