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What is solid.pm exactly in Comsol Solid Mechanics?

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I know it is Pressure but what is the difference between this one and stress or Piola stress? I could not find it in the manual!

2 Replies Last Post 22.05.2016, 00:47 GMT-4
Henrik Sönnerlind COMSOL Employee

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Posted: 8 years ago 20.05.2016, 01:50 GMT-4
Hi,

solid.pm is the 'pressure', that is -trace(Cauchy_stress_tensor)/3 .

If you want to see the exact definition of a variable, go into Equation View. See the attached screenshot.

Regards,
Henrik
Hi, solid.pm is the 'pressure', that is -trace(Cauchy_stress_tensor)/3 . If you want to see the exact definition of a variable, go into Equation View. See the attached screenshot. Regards, Henrik


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Posted: 8 years ago 22.05.2016, 00:47 GMT-4
Thank you Henrik
Thank you Henrik

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