Hello all,

I am developing an Abaqus VUMAT subroutine for Deshpande Evans (DE)/ Preston-Tonks-Wallace Material (PTW)constitutive model. I didn't write a subroutine before. I would appreciate any guidance toward the development of the subroutine. If anyone can share a VUMAT subroutine for DE/PTW model it would be of great help!

Thanks in advance!

Best Regards,

Arif