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Memory Shape Polymers
Posted 2017年8月10日 GMT-4 18:26 Structural Mechanics Version 5.3 0 Replies
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I found some relevant threads to Memory shape polymers but I posted a new discussion here as my question and need are somewhat different than posted threads. I know that COMSOL does not have a built in feature to simulate Memory shape polymer behavior. And to be more specific what I am looking for is not calculating stresses, I am aiming to show how the shape changes from an original shape to deformed and back to original under different temperatures. Or at-least the last step where I have a deformed polymer that when subjected to change in temperature will retain its original shape(and be able to see that in the graphics section).
I tried to employ the Generalized Maxwell model using the William-Landel-Ferry shifting function under solid mechanics> viscoelasticity and was able to see the stresses change due to relaxation, but when I changed the temperature in the final step the shape remained the same.
Any hints or comments would be very helpful. Its my first impression that a Generalized Maxwell model should be able to simulate the shape change in a Viscoelastic material. If that assumption is wrong it would be helpful as well to know that.
Thanks,
Hello Che-Hao Yang
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