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DrewBilbao

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About DrewBilbao

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    Germany
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  1. Hi all!! I have a question, which might seem quite obvious but it is driving me crazy. I am modelling honeycomb panels with 2D surfaces. Until now I have always modelled this material as 2D orthotropic, so with MAT8. Now my materials have changed and the following question arises to me: For the core ply, information available from manufacturer data sheets is the following: E3, G13 and G23. However, if I want to treat my model as surface, it is not possible with MAT8, because material parameters that I can introduce there are E1, E2; G12, G23, G13 and Poissons ratios. Is there any estimation or any conversion possible in order to make it work with shells? Another possibility is to model it with solids and using the Optistruct Engineering Solutions tool, which enables me to create a solid out of shells; however, when using it all contacts between surfaces are lost. Has someone faced the same problems when modelling honeycomb panels? It would be of great help. Thanks in advance!! Regards, Andrea
  2. Hi Prakash, Thanks for your quick reply!!
  3. Hello, I am quite beginner in Hyperworks and I am currently modelling a laminate (HC panel) with different plies. Whenever I make a modification in the mesh, before running the calculation I need to re-open Ply card and specify elements that are included in each ply, because they are lost due to mesh (thus, element) modification. I am wondering if there is another way to specify plies, because it might be relatively annoying to update this part of the model each time a mesh modification is carried out; in this case, number of plies is not extrenely big, but it can happen that a model consists of many of them, leading to a high waste of time. For example, that instead of selecting elements which would be involved in a ply, surfaces could be selected. Any help would be helpful. Thanks in advance. Regards
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