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How does COMSOL handle Composite Materials issues in Solid Mechanics?

Posted Mar 1, 2021, 10:12 a.m. EST Structural & Acoustics, Materials, Structural Mechanics Version 5.5 2 Replies

佳曈 檀
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A multilayer composite material was simulated by using the Solid Mechanics module. The geometry forms union. So how does COMSOL deal with the stress between layers? For example, when calculating the stress of the nodes between layers, which layer's mechanical parameters should be used.

2 Replies Last Post Mar 28, 2021, 10:25 p.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 3 years ago Mar 2, 2021, 8:21 a.m. EST

The default result on a boundary would be the average between the two domains.

If you want evaluate results that are discontinuous, you can use the side() operator; side(domain_number,expression).

Another variant is up(expression) and down(expression), but then you first have to figure out which side that is 'up' and which is 'down'. One way of doing that is to create a surface arrow plot of the surface normal vectors.

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Henrik Sönnerlind
COMSOL
The default result on a boundary would be the average between the two domains. If you want evaluate results that are discontinuous, you can use the *side()* operator; *side(domain_number,expression)*. Another variant is *up(expression*) and *down(expression)*, but then you first have to figure out which side that is 'up' and which is 'down'. One way of doing that is to create a surface arrow plot of the surface normal vectors.
佳曈 檀
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Posted: 3 years ago Mar 28, 2021, 10:25 p.m. EDT

Got. Thank you again!

Got. Thank you again!

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