LS Dyna

LS Dyna

Stress-Strain plot with ansys (mechanical APDL) always linear with Inconel718

    • isis.barraud-roussel
      Subscriber
      I'm trying to do a simulation on a simple 120mm piece. I am working in quasi static. I defined a displacement of 1mm on one side and fixed the part on the other side. I have defined 50 substeps with large deflection on.
      To plot the graph I've got the reaction force of the displacement and divide by the area of stress in y axis and I've got the dispacement divide by the lengh in x axis.
      I only have the linear part of the graph and I don't know how to get the whole graph with the plastic region.
      Do I need to be in explicit dynamic?
      I appreciate any suggestion
      Thank you for your help
    • Chandra Sekaran
      Ansys Employee

      What type of plasticity did you include (bilinear, multilinear?) in the material properties? During solution did the part experience plastic strain? You can plot the plastic strain in the model to verify this.

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