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Re: Tips for Mixed Meshing
When I hear "compatible mesh" I think of node sharing; is that what you mean?
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Re: Tips for Mixed Meshing
I believe that SW won't allow node sharing between solid and shell elements due to the different number of DOF associated with them. Most FEA packages (including SW) will use multi-point constraint equations to "link" solid elements to shell elements, so you won't (and don't) need to see the nodes line up in a mesh for a "compatible" connection to exist. If you were to instead just share nodes, then you'd have nodal compatibility issues that could result in a mechanism (thereby giving you a singular stiffness matrix).
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Re: Tips for Mixed Meshing
why do you need compatible meshing? what problem are you running into with the results or meshing?
shaun's answer covers what is likely going to happen
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Re: Tips for Mixed Meshing
I'm modeling thick parts welded into thin plates. I think these thick parts should be modeled using solid elements rather than shell elements. I just ended up using mesh controls to get a good incompatible mesh.
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Re: Tips for Mixed Meshing
Keep in mind that the stress results at the interface between shell and solid elements (i.e. where the multi-point constraints are) are not very accurate.
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Re: Tips for Mixed Meshing
keep an eye on our website www.hawkridgesys.com, we just did a presentation yesterday about simulation and one of the topics was shells vs solids, solids is not more accurate than shells when shells are used correctly. i think you'd be surprised if you compared them.
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