Dear All,
I am trying to simulate a hyper-elastic material plate in COMSOL Multiphysics to draw its dispersion curve. I used prestressed eigenfrequency module and applied prescribed displacement on four boundaries of the plate so that it remains pre-stressed. For dispersion curve I need to apply Floquet Bloch boundary condition on four boundaries of my plate. Now at a time on each boundary Periodicity and displacement is applied. When I run the simulation it does not work. I tried stationary simulation separately and simulate the plate with prescribed boundary condition. It works till this stage.
Now When I export the result of this simulation to used it in eigenfrequency module using interpolation (int1) function, it gives wrong result. So I wanted to ask, How can I apply the pre-stress condition on plate so that periodic condition should also work and i can get dispersion curve?
Thank you
You can calculate with two steps in one solve process. First step is stationary simulation for pre-stress. Second step is to sovle eigenfrequency with pre-stress.
Dear Hongping Hu,
The prescribed displacement and periodic conditon does not work at same time. This is main issue
if you could comment.
Thank you
Dear Muhammad,
I'm trying to simulate a similar caes. I tried to use Study Reference and change Study > Setting > Values of Dependent Variables in COMSOL. However, it seems that the solution of Presceibed Displacement still disappear when computing eigenfrequency. Have you solved this problem？Would you please share your method?
Thank you
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