抄録
The isotropic damage model applied in this study is based on fracture mechanics for concrete, and is capable of simulating quasi-brittle fracture and crack propagation with the fracture energy. The internal cracks affect the mechanical behavior of reinforced concrete subjected to tensile. But internal cracks cannot observed from the surface of concrete. For maintenance management and life prediction of the structure, it's important that we observe invisible internal cracks from surface of concrete. Therefore, we simulate 3D internal crack propagations formed in concrete around deformed bar using the damage model. Finally we assess the validity of the result of our crack simulation by comparing that of laboratory experiment.
