Hi Peter,

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Here i have a model with 3 parts.Actually it is a deformed model from another old model. And also initial stress must be applied into deformed model. and then during load part1 need to be removed in the middle step, finally to get results.

i heard there is an approach using instate and ekill, but i do not know how to do this in detail. Also maybe you have other idea to achieve this. could you please give me some suggestions? thank you very much