Abstract
We present a comparison of fracture behavior of reinforced concrete (RC) beam between numerical simulation and experimental measurement. To measure the fracture behavior of concrete, we employ the digital image correlation (DIC) method which is capable of measuring and visualizing the crack propagation in concrete. The FEM with a damage model is applied to simulate the fracture behavior with cracking in concrete. The damage model is based on fracture mechanics for concrete in consideration of cohesive zone in the fracture process. An experimental measurement with the DIC and a numerical simulation with the FEM are performed for 4-point bend test of RC beams with different shear reinforcements. The quantitative comparison of fracture behavior with cracking between the numerical and experimental results offer valuable insight into the validation for the fracture simulation of concrete and reinforced concrete.
