Non-linear buckling -- CFD Online Discussion Forums

September 24, 2016, 05:24	Non-linear buckling	#1
shahrbanoo Member shahrbanoo Join Date: Mar 2013 Posts: 63 Rep Power: 13	Dear Engineers Hi I am modelling a non-linear buckling. At first stage, I modeled static structural and after that linear buckling. For modeling non-linear buckling, I transfered data to new mechanical APDL from the solution part of Linear buckling. and I wrote this code: /prep7 upgeom,,,,file,rst cdwrite,db,file,cdb then I updated the mechanical APDL and Itransfered it to finite element modeler and I faced a very very deformed Structure. Although I had a force of only 1 nioton!!! why is it like thiS? nonlinear buckling process:

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