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Cracks
Posted Nov 6, 2009, 1:06 p.m. EST 1 Reply
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Hello all,
I have a simple question. How can I implement cracking in brittle materials in comsol, I have spent a long time searching fro information in the documentation but haven't found anything appropriate.
For the material i have the material loaded with forces and thermal flux, and its maximum stress strain properties.
I just don't know how to implement the cracks or their propagation. Any advice would be appricated.
Thank you
Rizgar Mella
1 Reply Last Post Dec 4, 2009, 5:32 a.m. EST
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Posted:
2 decades ago
I do not really know.
I imagine that you could define an internal boundary, and a binding force in the shape of a Heavyside function, below which there is a large binding force that keeps the materials (i.e. their faces) attached... and above which there is no more binding... Maybe you can model it as a Fracture Energy or a material strength (i.e. energy/unit of surface area)...
Check as well the posts on dleamination or interface cracking....
Please if you have any progress, post the info on
I imagine that you could define an internal boundary, and a binding force in the shape of a Heavyside function, below which there is a large binding force that keeps the materials (i.e. their faces) attached... and above which there is no more binding... Maybe you can model it as a Fracture Energy or a material strength (i.e. energy/unit of surface area)...
Check as well the posts on dleamination or interface cracking....
Please if you have any progress, post the info on