Now I'm working on the concrete material model including strain rate effect, I just wonder that will the strain rate be computed in the element level (especial for beam elements) or not? I know that for truss element and zerolength element, the strain rate will be compute. I have seen in Concrete02 the strain rate equals zero, but I'm not sure beam element will compute it or not.
> no strain rate is computed by the beams or sections for passing to the
> materials .. you will have to compute yourself from the strains .. you can
> get the time step from OPS_Dt global variable (defined in OPS_Globals.h)
got it. Thanks a lot fmk!