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Cohesive Zone Modeling only mode I

Posted Apr 23, 2024, 11:34 p.m. EDT Structural Mechanics 3 Replies

Darren Lai
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Hello,

I am modeling the connection of two objects using CZM (Cohesive Zone Modeling). I only want to utilize Mode I (tension) instead of Mixed Mode. Does anyone have any suggestions or tips?

Thank you.

3 Replies Last Post Apr 26, 2024, 3:48 a.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 6 months ago Apr 24, 2024, 7:18 a.m. EDT
Updated: 6 months ago Apr 24, 2024, 7:18 a.m. EDT

The built-in model is inherently mixed, so this is not trivial. You would probably have to do some equation based modeling.

However, it would be interesting to understand what behavior you want: Is it decohesion in tension while still undamaged in shear, independent of the level of the shear stress?

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Henrik Sönnerlind
COMSOL
The built-in model is inherently mixed, so this is not trivial. You would probably have to do some equation based modeling. However, it would be interesting to understand what behavior you want: Is it decohesion in tension while still undamaged in shear, independent of the level of the shear stress?
Darren Lai
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Posted: 6 months ago Apr 24, 2024, 8:46 a.m. EDT
Updated: 6 months ago Apr 24, 2024, 8:51 a.m. EDT

Yes! I want my model is decohesion in tension while still undamaged in shear, independent of the level of the shear stress.

However, I'm not quite sure of the specific steps required to implement this. Could you provide guidance or assistance?

Thank you.

Yes! I want my model is decohesion in tension while still undamaged in shear, independent of the level of the shear stress. However, I'm not quite sure of the specific steps required to implement this. Could you provide guidance or assistance? Thank you.
Henrik Sönnerlind COMSOL Employee

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Posted: 6 months ago Apr 26, 2024, 3:48 a.m. EDT

I suggest that you contact support in order to get more detailed help in this case.

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Henrik Sönnerlind
COMSOL
I suggest that you contact support in order to get more detailed help in this case.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

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