I encountered an issue while using the phase-field method to simulate fatigue. The cycles of fatigue to simulate can not be determined before analysis, so I adopt the restart analysis to continue the analysis if the extent of crack propagation doesn't reach the expected level. I adopt the dummy mesh which requires the number of SDVs to output the user element's results. It works well in first analysis, but when I continue the restart analysis, all the results of SDVs are zero while the NT11 results are normal. I try to print the value of nstatev in UMAT, and find it is zero in restart analysis. I don't know why it is and there is no useful information in Abaqus document or online. Has anyone encountered the same problem and how to deal with it ?
- Badges
- Science topic
- Similar topics
- Correction