Hello,
I have a returning problem. I often have to simulate the process of different metal plate bending. There are a lot of cases when these processes include more steps. (Bending 1, Bending 2..Bending X). As far as I know, the material will include a residual stress after all bendings (in case of sigma > yield stress). So the result of current bending will depend on the residual stress field generated by previous bending step. Based on this, the simulation (result of STEP 2) will be correct and exact if the STEP 1 also were simulated.
At the moment I prepare the STEP 1 geometry (bended already) in Creo and a simulate only the STEP 2. Consideration of all STEPs would be too complicated and long. But I think this solution is not correct becasue the STEP 2 starts fomr a state which doesn't include the residual stresses.
- How can I consider the residual stress from STEP 1 with more simple method?
- Or how can I separate the STEPs? For example; Analysis 1: STEP 1 only than Analysis 2: STEP 2 only initialized from result of Analysis 1.
Thanks a lot:
Roland