I am writing VUMAT code for incompressible, reinforced hyperelastic material.I have two question about VUMAT. please answer it. I will be very appreciative.
1. The constitutive model is incompressible, so can I write a VUMAT for it or I should add an compressible term to the constitutive model...
thanks for your suggestion. I will verify it and then report the results to you.
about orientation, I have defined a cylindrical orientation for model. I think it must not been specified fiber direction in the keyword for model.In fact, I have considered R direction as direction-1 in the code...
I do not know your meant about verifying.
But, I am sure about the material parameters. the code is run without local coordinate. but when I use local cylindrical coordinate, I received the mentioned error.
Hi every body
I have written a VUMAT subroutine for anisotropic hyperelastic material Also, I have introduced material orientation for fiber directions by keywords. . but I have received the error " Bad Material definition in element number".
[sad]please give me any suggestion if anyone can help me
