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How to predict polymer permanent deformation during aging test

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blackhole612
Posts: 6
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(@blackhole612)
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Joined: 3 years ago

Hello 

I am so exciting to find this professional forum. I am facing some challenging issues of polymer under high temperature aging test, the polymer part experienced permanent deformation even no preload on the part(free state in the oven). Is it because of residual stress which cause the creep deformation? What material model should I use and calibrate in MCalibration to predict such issue?  Thank you!

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