Dear Andrew, I want to model the shear band propagation in geomaterials by elastoplastic Mohr–Coulomb constitutive model in combination strain softening. Regards, Mehdi > Dear All, > > Does anyone have some experience on execution of UMAT subroutine? I have > written an UAMT subroutine in Abaqus software but I have problem to run > it. > I install fortran and in the command line, I write: abaqus job=(input file > name) user=(subroutine name). > I am looking forward to hear from you and provide me some information > about this problem. > > Regards, > Mehdi > > > >