Using COMSOL Multiphysics, I am aiming to model and simulate the compression and tensile test scenarios of 3D printed samples (ABS, PLA, PETG). However, it would appear that the default equations used for the Nonlinear Elastic Material section of the the Solid Mechanics Physics model is Isotropic. I would like to use an Anisotropic approach given how the printing parameters in the lab would change the samples' outcome from an Isotropic to an Anisotropic material.
Any advice would be greatly appreciated. I've attached a snap shot of the compression model along with the equations involved for the Nonlinear Elastic Material
I found this tutorial for the non-linear hyperelastic model in Comsol. It has used the Holzapfel-Gasser-Ogden model and has a good reference.
https://www.comsol.com/model/arterial-wall-mechanics-14499
Shayan Davani
Dear Ezekiel Yorke
also this may help you:
https://www.comsol.it/model/hyperelastic-seal-206
Regards,
LC
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