Jump to content
Sritej Kalas

Boundary Conditions & Constraints

Recommended Posts

Hello,

I am trying to run a Linear Static Analysis of a huge assembly. I have 4 ISO Corners at the bottom. I have 2d meshed it (Simplified Geometry : Quad4 Elements only). When i fix the bottom face only of all the four ISO corners and run my simulation i get unsatisfactory results. By unsatisfactory i mean significantly high stresses and displacements.

But when i create a RBE2 on each of the 4 individual ISO Corners (i.e 4 RBE2's) and apply constraint/SPC (All 6-DOFs FIXED)  to those 4 RBE2s master node, i get satisfactory results. Could anyone explain why this contrasting results or mismatch?

Share this post


Link to post
Share on other sites

Second approach with RBE2 fixed with all dof is recommended.Please request FEA ebook using below link.In page no 386 of ebook we talk about bracket analysis with and without rigid element. 

https://altairuniversity.com/free-ebooks-2/free-ebook-practical-aspects-of-finite-element-simulation-a-study-guide/

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
You are posting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...