Hi,
I am trying to model a composite Sandwich panel and compare it with NAFEMS results.
The sandwich is made out of:
- two skins (shell elements, 2D orthotropic material)
- core (solid elements, 3D orthotropic material)
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My first modelization approach consists of using the SAME surface for the solid and shell elements. In other words, to create the Idealization of shell surfaces, I directly use the faces of the solid
Some other software (...abaqus) call this approach "skins". I tough that would be enough, but the results are not good (see table at the end). My hypothesis it that the rotational dof of the shell are not being transferred to the solid. Do you think that makes sense?
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My second modelization approach consist of using different surfaces for the skins, and use a bounded contact to "glue" them to the solid core. Results are better....
Any comments? someone already tried the "skin" element approach?
Results summary:
Thanks
Pierre
Version: Inventor 2021, Built 138
Pierre Lafortune
idrasimulation.com
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