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PDMS - hyperelastic material - which model and parameters to use?
Posted 2018年7月11日 GMT-4 12:45 Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.3 0 Replies
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Hello COMSOL community,
I am trying to make a very simple stretch simulation on a PDMS rectangular sample (1mm thickness) and to observe the deformation field.
For now, I have selected the "PDMS" in the Materials section and I have chosen a linear elastic material in the Solid Mechanichs section, but an hyperelastic material would be definetly more realistic for silicones.
I saw a lot of different models that can be used to simulate hyperelastic materials in the Solid Mechanics section. I have tried to dig a little bit in the literature, but I have no idea which model to use (Neo-Hookean, Ogden, Varga, ...) and which parameters to choose for a defined model...
Can someone please help me or give me any advice? Thank you very much!
Hello Ivan
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