l*y
发帖数: 21 | 1 I had little expereince on mechanical propeties and not confident about my own
answers. Please advise, friends. We all know there are some big bulllls
around, and hope to learn from you guys. Thanks a lot.
Here are my friend's question:
Is yield strength of polymer would be same for both tensile and
compressive stress condition? We know that, in general, ceramics have
higher yield strengh under compression than that under tension.
Is yield strength a good parameter for measuring the failure of p | w********h
发帖数: 12367 | 2 (1) Compression modulus is different from tensile modulus for sure.
(2) You need to consider many parameters: modulus, strain and stress.
check your Experiments for Polymer Science edited by Ou Guorong.
There is one experiment for that, very detailed.
stiffness is judged by modulus;
toughness is judged by strain;
strength is judged by stress.
own
【在 l*y 的大作中提到】
: I had little expereince on mechanical propeties and not confident about my own
: answers. Please advise, friends. We all know there are some big bulllls
: around, and hope to learn from you guys. Thanks a lot.
: Here are my friend's question:
: Is yield strength of polymer would be same for both tensile and
: compressive stress condition? We know that, in general, ceramics have
: higher yield strengh under compression than that under tension.
: Is yield strength a good parameter for measuring the failure of p
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