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Multiphysics analysis: mechanical stress inside a cylinder-piston system

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Hi all, as written in the title, I need to compute a multiphysics analysis. In particular my model is a 3-point-bended beam inside a cylinder in which there is air at a certain starting pressure. On the top of this cylinder there is a piston which moves and increases pressure. I need to know if this increasing pressure caused by the piston, has an influence on the 3-point-bending.

I attach some screenshots to let you understand better.

By now, I didn't manage to achieve this analysis. I hope you can help me. Thanks in advance! Pierpaolo



0 Replies Last Post Feb 19, 2020, 6:14 a.m. EST
COMSOL Moderator

Hello Pierpaolo Fucile

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