Dear all,
I have a question regarding the setting the cast of polymer molding in Comsol. I want to simulate the shrinkage process of a plastic part in a mold, during which volumetric shrinkage happens due to the drop of temperature.
Is there a way in Comsol to set this modelisation taking into account the shrinkage effect and the disband that occurs between the casted part and the mold?
BTW, I am using both structural mechanics and heat transfer module and hoping to simulate the final shape (displacement and temperature field). I used "contact pairs" to model the contact and the Multiphysics "Thermal Expansion" and "Temperature Coupling" (Thermo-elasticity) and I’m getting convergence problems. I tried already to refine the mesh on the contact boundaries with no success.
It seems that when the disband between the mold and the casted part occurs, the nonlinear solver does not converge.
Thanks in advance!
Best regards,
Moaine