I'm performing a direct shear test in PFC2D. I'm able to get the graph of normal stress vs no. of steps and shear stress vs no. of steps. But, I'm finding it difficult to get normal stress vs shear stress. Suggest me the code.
in Plot items you can find Vs. (Specify what should be used for the x-axis of the plot item. If blank, the default value, which is “step”, is used. Other values entered here should match the field labels as shown in the Histories list.)