Hi everyone,   I want to use law70 card to define elastic and plastic material properties of foam (styropor). According to this law, you can insert different tabulated stress-strain data for different strain rates.But, I have only one stress-strain data. When I used this data with law33, there is no problem, but I used same data with law 70, styropor distorted and analysis didnt complete.    How can I use law70 card to my model?    Thanks...