Iam working on the analysis of simply supported RC Slab using ABAQUS with Concrete Damaged Plasticity. Anyone knows the ideal or best data or expressions or formulaes to relate the yield stress and strain (or displacement or GFI) for tension behavior in the tension stiffening profile.
Please let me knows. Thank you.
Tension stiffening
Hi Elmi,
I have used tension stiffening in my RC beam model.
Tension stiffening data are used to model the concrete tensile properties after it has cracked (it is the decending branch of tensile stress Vs strain curve). After cracking concrete can take some tension which reaches to very low value with progressive damage.
you need to input the decending branch of the tensile stress Vs strain/crack opening curve. the first point shall be the (peack tensile stress, zero plastic strain/ zero crack opening) point when concrte reaches the ultimate tensile stress.
hope this information will help you.
thanking you
SAJIB