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How to calculate and use the left Cauchy-Green deformation tensor in a strain energy density calculation

Posted 23 janv. 2018, 08:32 UTC−5 Parameters, Variables, & Functions, Structural Mechanics Version 5.2a 1 Reply

Eric Harper
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I am currently working on implementing a strain energy density function that requires the use of the left Cauchy-Green deformation tensor, B

Looking in the documentation for nonlinear hyperelastic structural materials, I see this is not a built-in/provided quantity in COMSOL. I'm currently working on using the same mathematical workflow used to calculate C to calculate B for the strain energy density function, but was wondering if anyone else has done this, had any tips, etc.

Thanks in advance

1 Reply Last Post 23 janv. 2018, 16:31 UTC−5
Henrik Sönnerlind COMSOL Employee

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Posted: 7 years ago 23 janv. 2018, 16:31 UTC−5

Hi Eric,

Please see my comment in https://www.comsol.com/forum/thread/164242/issue-in-computing-first-invariant-of-cauchy-green-tensor

Regards,

Henrik

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Henrik Sönnerlind
COMSOL
Hi Eric, Please see my comment in https://www.comsol.com/forum/thread/164242/issue-in-computing-first-invariant-of-cauchy-green-tensor Regards, Henrik

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