A simple orthotropic elasticity-based constitutive model for reinforced concrete

Using strain-induced orthotropic material concepts, a new numerical constitutive model is demonstrated by predicting the ultimate capacity of a unique simple test specimen and two cylindrical shell structures. Only the uniaxial compressive strength of the concrete and the yield stress of the reinforcing steel are needed as input to predict both constitutive behavior and structural strength. The approach is simple, reliable and computationally efficient.Paper was presented at the 1988 SEM Spring Conference on Experimental Mechanics held in Portland, OR on June 5–10.