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How to apply two solid mechanics interfaces on the same domain?
Posted Jul 23, 2017, 9:06 p.m. EDT 1 Reply
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Dear all,
I am planing to simulate the mechanical behaviors of a double porosity media which is decomposed into two fictitious porous media, i.e. the micro one and macro one. Now I want to use two sets of mechanical constitutive models to control the two porous media, respectively. However, Comsol prohibits applying two solid mechanics interfaces on the same domain. Error is "Multiple moving frame specifications on the same selection."
Does anyone have any experiences on this problem? Would you mind sharing me some ideas?
Thank you so much for your time and assistance in advance.
I am planing to simulate the mechanical behaviors of a double porosity media which is decomposed into two fictitious porous media, i.e. the micro one and macro one. Now I want to use two sets of mechanical constitutive models to control the two porous media, respectively. However, Comsol prohibits applying two solid mechanics interfaces on the same domain. Error is "Multiple moving frame specifications on the same selection."
Does anyone have any experiences on this problem? Would you mind sharing me some ideas?
Thank you so much for your time and assistance in advance.
1 Reply Last Post Jul 25, 2017, 6:25 p.m. EDT
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Posted:
7 years ago
Hi,
This should an issue only if the study is geometrcally nonlinear. In that case, you have to manually decide on the 'ruling' physics interface. That is, which one decides the deformation of the domain.
This selection you do in the settings for the study step (Modify physics tree ...).
Regards,
Henrik
This should an issue only if the study is geometrcally nonlinear. In that case, you have to manually decide on the 'ruling' physics interface. That is, which one decides the deformation of the domain.
This selection you do in the settings for the study step (Modify physics tree ...).
Regards,
Henrik