Hello everyone, in Ls-dyna I am trying tensile test with Mat_15_Johnson Cook material model. I could observed failure state at middle of the gage length with this material model. When I tried Barlat_YLD_2000 and Mat_add_erosion card to observe failure, I defined Gissmo damage model and triaxiality-strain curve on Mat_add_erosion card. However, I couldn't see failure on mid of gage length. The failure occurred at end of the gage length. In mat_erosion card, what else should I define ? Thanks, have a good day!