変形場との連成による破壊パラメータ場の数値解析

抄録

In this paper, a phase-field method for brittle fracture is presented. In this method, the diffuse fracture is supposed. Here, the order parameter of the phase-field model takes values between zero and one, which correspond broken and unbroken regions, respectively. The elastic strain energy field and the fracture field are coupled with each other and solved separately. This model are does not need any predefined cracks and it can simulate complex fracture paths, branching and crack coalescence. In this paper, the simple example is presented for the purpose of the explanation of the formulation of this model and the benchmark of the model.