Apply imperfection to model to assist convergence

If you have previously run a large deflection analysis that failed due to convergence problems, then applying an imperfection to the model may resolve the problem.

If you select this check box, the solver will first automatically run a buckling analysis to determine the buckling mode shapes for the part, and then apply a certain fraction of the buckling mode deflections to the original geometry, before running the large deflection analysis.

Click Edit Settings to specify the buckling mode and the fraction of the buckling mode deflections to be applied to the original geometry.