I was wondering why Solidworks Sim doesn't have these element types?
because its a stripped FEA package. essentially a tet blaster!
Hi Kevin: Actually, it does have them. If you have the SolidWorks Simulation Premium package, make sure to allow a product labeled as "COSMOSM" to install. Assuming you have done that, launch one of the interfaces known as "GeoSTAR". There are brick elements (hexahedron) known as "SOLID". The tetrahedrons are labeled "TETRA4" and "TETRA10", and they have quadrilateral-shaped, flat elements that can be used to represent plate behavior as "SHELL4" and even for plane-2D behavior as "PLANE2D". You can port your SW model to the interface and use those type of elements. Hope that helps.
Note that SW Corp no longer sells the GeoSTAR interface as a stand-alone FEA package, but it is included with SW Sim Premium and is extremely powerful, due largely to its voluminous element library. I hope that helps. -Tony
That's interesting, are they still migrating over COSMOS functionality year by year as the Simulation product grows? Or are they trying to make it leaner as in, if you dont really need it, leave it. I can imagine the uses for plates and bricks would be limited given linear and second order tris and tets.
They could be handy in NL contact problems - much better convergence characteristics apparently. While I am at it all this would be handy as well: springs to ground for low stiffness NL contact problems, NL springs, pipe elements, general stiffness restraint (6 DOF with stiffnesses) to name a couple.
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