LS-DYNA FSI Aortic Valve
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I am in the process of building a strongly coupled implicit FSI (with ICFD) model of an aortic valve, studying the effect of fibre orientation using the MAT_295 HGO model. I believe this material model requires me to use solid leaflets, as shells are not supported (yet). This makes it more difficult, though. When the solid leaflets touch, the fluid surface mesh follows and touches as well, which leads to penetration of the fluid mesh. With shells, this is not an issue, since the shell thickness ensures that there is an offset, ensuring that the fluid surface meshes do not touch. I tried many things, like SLDTHK of 0.1/0.25 mm (solid leaflets thickness being 0.25 mm), but this would easily lead to a blow-up due to the contact. This is the current contact keyword card:
Does anyone have an idea I could try? Thanks a lot in advance!!
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