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FEA
Layered shells with mixed material models.
HI,
Some days ago, I had access to an interesting ccx inp file. I found that layered shells can contain orthotropic elements with isotropic elastic materials all in the same Shell section definition.
Not been that enough I have recently discover that one can even have plastic or hyper elastic layers in between, opening the door to a new set of capabilities.
Gaskets which typically mix rubbers, vegetable fibers, carbon fibers or metallic insertions could be modeled.
I have modeled a composite build with plastic, elastic, orthotropic and hyperplastic materials all them together. Mecway has not complain to process the results (even shows the PEEQ value just for the plastic layer). I would like to ask if someone knew about this possibility and has some experience or warnings about it.
I suppose it can be hard to validate or even verify one of this tutti-frutti so any possible comment respect them is appreciated.
If you didn’t know about it I encourage you to try.
Main Custom card looks like this with its corresponding previous material definition.
*SHELL SECTION,COMPOSITE,ELSET=Uniaxial_Tension,offset=0.0
0.00001,,Gelcoat
0.00001,,Glass_biax
0.00002,,medium_density_foam
0.00005,,S235_DNV
0.00005,,OGDEN_Intima
0.00002,,medium_density_foam
0.00001,,Glass_biax
0.00001,,Gelcoat
Regards
Some days ago, I had access to an interesting ccx inp file. I found that layered shells can contain orthotropic elements with isotropic elastic materials all in the same Shell section definition.
Not been that enough I have recently discover that one can even have plastic or hyper elastic layers in between, opening the door to a new set of capabilities.
Gaskets which typically mix rubbers, vegetable fibers, carbon fibers or metallic insertions could be modeled.
I have modeled a composite build with plastic, elastic, orthotropic and hyperplastic materials all them together. Mecway has not complain to process the results (even shows the PEEQ value just for the plastic layer). I would like to ask if someone knew about this possibility and has some experience or warnings about it.
I suppose it can be hard to validate or even verify one of this tutti-frutti so any possible comment respect them is appreciated.
If you didn’t know about it I encourage you to try.
Main Custom card looks like this with its corresponding previous material definition.
*SHELL SECTION,COMPOSITE,ELSET=Uniaxial_Tension,offset=0.0
0.00001,,Gelcoat
0.00001,,Glass_biax
0.00002,,medium_density_foam
0.00005,,S235_DNV
0.00005,,OGDEN_Intima
0.00002,,medium_density_foam
0.00001,,Glass_biax
0.00001,,Gelcoat
Regards
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