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Mechanical properties of prestressed thermoplastics

✍ Scribed by H. Gust; R. Hengl; P. Eyerer

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
613 KB
Volume
10
Category
Article
ISSN
0730-6679

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✦ Synopsis

Mechanical tests of prestressed and nonprestressed specimens show that prior stressing often signijicantly changes the stress-strain curve of amorphous and partly crystalline Specimens subjected to a prior mechanical stress show a Jla#er stress-strain curve (even with a "kink") than those not previously stressed. The original properties of prestressed specimens can be restored by tempering (at least in the range of small elongations). Specimens made of ABS react differently: After certain longterm prior stresses, followed by short-term tensile tests, brittle fracture occurs.

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