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How to add a hygroscopic expansion coefficient in solid mechanic model?

Posted 7 nov. 2014, 22:41 UTC−5 Heat Transfer & Phase Change, Chemical Reaction Engineering, Materials, Structural Mechanics Version 4.3b 0 Replies

Supitchar Meesukchaosumran
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I'm trying to compute stress-strain of grains during desorption process. There are two factors affecting the expansion of grains. One is heat (thermal effect). The other is moisture (hygroscopic effect). Unfortunately, COMSOL has only thermal stress module. So, I can simply add a thermal expansion coefficient but I can't add a hygroscopic expansion coefficient. Does anyone know how to add this coefficient?
Thank you.
0 Replies Last Post 7 nov. 2014, 22:41 UTC−5
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Hello Supitchar Meesukchaosumran

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