Ammar Hussein

Thanks for your reply Nanda,

Yes I want to have 2 curve fittings for one viscoelastic material.

The first I did was the hyperelastic Ogden curve fitting for my Uniaxial, Shear, and compression test data to define my material.

The second I want to do is the Prony shear relaxation since my model undergo relaxation, but unfortunatly, I found out that Ansys Workbench does not support 2 curve fittings.

As such I need to do it in Mechanical APDL. But I can't find any leads on how to do the viscolastic prony shear curve fitting for a beginner in APDL.