how transfer 2d transient thermal to 3d for stress analysis

[imse]

Hi,

how can a 2D thermal load (from transient thermal analysis)be transfered to a 3d model for stress and distortion analysis...

I have seen a bunch of research papers using such a method... could someone please advice

thanx

Robin

 

[nodalDOF]

If there is some kind of geometric similarity between your 2-D and 3-D Models you can use BFINT command to transfer the temperatuere loads from 2D thermal to Structural 3-D.

Nodal

 

[imse]

i am try to model a welding simluation.. 18" * 3" * 3/8"

First, I am only considering one-half part of the welding plate.. and the thickness of that one half is constant


the heat is apply on the top surface (which would be my 2D plane)..

 

[nodalDOF]

That means your 3-D model is just an extrusion of your 2-D one. BFINT works for your case. All you have to do is to write proper node files for front and back faces of your 3-D model (assuuming 1 element thick) before interpolating from 2-d model.