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Periodics conditions

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Hi all,

I'm using the physics "Membrane" and I wanted to know why I can't add a periodic condition to study the eigenfrequencies of a network of membranes.
As far as for the "shells" physics.

Thank you for your answers

2 Replies Last Post 24 giu 2016, 05:51 GMT-4
Jeff Hiller COMSOL Employee

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Posted: 8 years ago 22 giu 2016, 09:11 GMT-4
Hello Jean-Eudes,
Periodic boundary conditions for shells were added at version 5.2a, see www.comsol.com/release/5.2a/structural-mechanics-module .
Best regards,
Jeff
Hello Jean-Eudes, Periodic boundary conditions for shells were added at version 5.2a, see https://www.comsol.com/release/5.2a/structural-mechanics-module . Best regards, Jeff

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Posted: 8 years ago 24 giu 2016, 05:51 GMT-4
Hi Jeff,
Thank you for your answer.
Indeed I can use periodic boundary conditions with shells.
However I can't use this whith Membranes.
I want add a stress to the membrane but it doesn't take account of the Initial Stress with Shells but only with Membranes.
Can you help me?
Thanks
Hi Jeff, Thank you for your answer. Indeed I can use periodic boundary conditions with shells. However I can't use this whith Membranes. I want add a stress to the membrane but it doesn't take account of the Initial Stress with Shells but only with Membranes. Can you help me? Thanks

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