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Abaqus software using problem: how to input user-defined function?

Submitted by dolken on

Hi Everyone,

I am a new user for Abaqus. I have a modeling for anisotropic
hyperelastic material. We need to use our own strain energy density
function. Does any one know how to input the user-defined function step
by step especially in CAE module? If you know how to input it in other module, it is also welcomed




Another question: My material (the same material as above) has a
swelling. Namely, the determinant of the deformation gradient matrix is
a constant other than one. Can Abaqus allow me to add such constraint
to the analysis? If yes, how to add such constraint?




Thanks for all your answers.