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Mechano-sorptive creep for timber

Posted 23.06.2022, 05:06 GMT-4 Structural Mechanics, Material Models 1 Reply

Frank Lu
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Hi,

I am modelling the mechano-sorptive creep for hardwood. The 3D equation is attached. However, in the creep under Solid Mechanics Physics, it seems we can only model 2D problem. Is there any option we can model 3D creep?

Cheers, Frank

1 Reply Last Post 27.06.2022, 03:37 GMT-4
Henrik Sönnerlind COMSOL Employee

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Posted: 3 years ago 27.06.2022, 03:37 GMT-4

As I understand it, the problem is that you have an orthotropic prescribed strain rate tensor. Then, you can use the Inelastic Strain Rate node.

In the Creep node, it is assumed that the creep strain rate is proportional to the deviatoric stress tensor.

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Henrik Sönnerlind
COMSOL
As I understand it, the problem is that you have an orthotropic prescribed strain rate tensor. Then, you can use the *Inelastic Strain Rate* node. In the *Creep* node, it is assumed that the creep strain rate is proportional to the deviatoric stress tensor.

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