Dear sir,

I want to know about how to introduce the initial imperfections in crashworthiness analysis (QUasi-static analysis) for isotropic material using ABAQUS/Explicit.

I am doing the eigenmode buckling analysis for initial imperfections. But i do not understand how to use this buckling modes in quasi-static analysis as initial imperfections? I am also confused about the boundary conditions used in buckling analysis. Should the BCs be same as that is used in quasi-static analysis? I came to know to use *IMPERFECTION code in input file for initial imperfections.But how to do that?

Plz guide me abt this. I will be very grateful to you.

waiting for ur reply.