Creep/Stress Relaxation Data

It would be very useful to have some general creep/relaxation data to refer to when picking materials for a project. Often times I run into a situation where multiple materials seem to fit the needs based on the technical datasheet and then after choosing one, the stress relaxation is so fast that my prototypes become less than functional very quickly. It is not a deal breaker since they are prototypes but it would be nice to know which material to choose in order to maximize the time I can get out of these prototypes. Especially when there are multiple materials that would work.

TLDR: I end up avoiding new materials because I’d rather deal with the better understood limitations of grey pro (which I am very happy most of the time) than run into unexpected creep/stress relaxation issues.

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