BUCKLING AND GEOMETRIC NONLINEAR ANALYSIS OF A TIE ROD IN MSC/NASTRAN VERSION 68 Author : George Campbell, Wen Ting, Peyman Aghssa, Claus C. Hoff

WHAT IS THIS DOCUMENT ABOUT? : The improved geometric nonlinear capability in MSC/NASTRAN Version 68 is tested on a large scale finite element model of a tie rod. The static buckling load of a tie rod is analyzed. The results of the finite element model are compared with experimental results. The analysis is performed in three steps. First, linear buckling is analyzed with SOL 105. Second, a nonlinear static analysis with arc-length method is performed in SOL 106 to determine the instability behavior of the structure. In the last step, a nonlinear buckling analysis is done with restart into SOL 106 to determine the nonlinear buckling load. The tie rod has a strongly nonlinear behavior which is due to material yield and geometric nonlinear effects. It is shown that MSC/NASTRAN's computed buckling load agrees well with the experimental buckling load

Keywords	:	buckling geometric nonlinear tie rod msc nastran version 68
file credit	:	George Campbell, Wen Ting, Peyman Aghssa, Claus C. Hoff
file type	:	pdf
file topic	:	Engineering
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file address	:	www.mscsoftware.com/support/library/conf/wuc94/p01594.pdf

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