April 13, 2023 at 6:02 pm
Reno Genest
Ansys Employee

Hello Benhour,

If you are using a linear elastic model (*MAT_001 in LS-DYNA), you don't need stress-strain curves. Only density, young's modulus, and Poisson's ratio.

Importing a stress-strain curve makes sense for a material model with plasticity such as *MAT_024 (for modelling metals).

 

Reno.