Notifications
Clear all

Meshing Help for Hyperelastic material with irregular geometry


cherylfoster
Posts: 3
Topic starter
(@cherylfoster)
New Member
Joined: 11 years ago

Hello All,

So I am using ABAQUS. I have some irregular geometry structures, with hyperelastic material properties fitted to a marlow model, using ABAQUS material evaluation package. I am trying to mesh these irregular geometries with a hexahedral mesh. This is because when I use a tet mesh, the model will not converge. I believe this is because my material deforms greatly, so the hexahedral advanced hourglass controls are needed. I have tested the hex mesh with a uniform geometry structure, of similar proportions, using the hexahedral mesh with advanced hourglass controls and the analysis ran exceptionally well. I believe the key to my model is to incorporate this advanced hourglass control. [B]But I am unable to mesh my irregular structures with a hex mesh[/B]. The tet mesh look great for my irregular geometries, however, there is no hourglass control parameter when using a tet mesh. [B]I am wondering if there is a way i can account for the hourglass effect with a tet mesh, OR if there is a way I can get a hex mesh to work for my irregular structures.[/B] Any help would be GREATLY appreciated. I have both SAT files and IGES files for both structures, if anyone has any ideas, please let me know.

Thanks a bunch,

-Alex

1 Reply
cherylfoster
Posts: 3
Topic starter
(@cherylfoster)
New Member
Joined: 11 years ago

Hello All again,

I am also wondering if there is a way to have a tet mesh work with a marlow model in abaqus. for some reason, the model will not converge unless I use advanced hourglassing with a hex mesh. But I am wondering if there is a way I can account for this hourglassing with a tetrahedral element. Any help would be great. Thanks!

-Alex

1 Reply
Share: