Topic: Evaluate a model
good evening
please could I ask for an advise what to do to evaluate a model with the steel concrete composite beam experimental test
I tried to change the concrete strength and the interface material (normal stiffness K NN and tangential stiffnes K tt) ( for the steel concrete contact I put them 7*10^3 MN/m^3 - Friction 0.1)
the elastic region is still short after all the changes .. the plastic moment is always lower than the real test.
any advise please!
Thank you for your concern