Hi,
I am trying to model FRP strands (3D Continuum ) in ABAQUS. Since ABAQUS does not allow Hashin damage model to be utilized in 3D elements, I am planning to write a UMAT code for it.
My doubt is can i utilize Hashin failure criteria for any type of FRP material like bars, pre-stressing strands etc., or its valid only for laminates?