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How to test for fatigue under a temperature load

Question asked by Majd Al Mohtar on Feb 13, 2018

i have an HDPE plastic in which I want to predict the life of, when exposed to radiaton. The maximum temperature it reaches is 58 degrees for 2 hrs per day, but when i apply the temperature load I link this static study to a fatigue analysis. Is this the right way to predict the life? I got 2*10^5 cycles as a lifetime.

 

help is much needed and appreciated!

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