Connected thin wall structure

Altair Forum User

I started to learn hypermesh last week and i am trying to mesh three three mated parts. Two of them are thin-wall structure and the other one is not. Can i use mid-surface mesh for the two thin-wall structure and hex mesh for the non-thin-wall part?  For my project, i only care about the non-thin-wall part tho. Thanks in advance.

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Altair Forum User

Hi Adam,

 

Of-course you can have midsurface shell mesh on thinwalled plate and solid hexa mesh for non thin wall part. But make sure you connect them properly. Here are few tips on connecting shell and solid elements.

 

Sandwiching: Having 1 or 2 layer of shell elements inserted between the solid elements at their junction. an extra layer of shell should be created inside/between the solids, helps create a smooth transition b/w solids and shells.

 

 

 

Using RBE2 to connect the shell and Solid elements. The independent should hold the Shell node and at least two dependent should hold the nodes on the Solid. Make sure you have nodes on Solid elements exactly of the PSHELL thickness.

 

 

 

Create skin of the solid elements and then connect the nodes of those skin elements with other shell elements.