抄録
To simulate large-scale fracture mechanics problems effectively, the partitioned iterative coupling algorithm can be employed. In the algorithm, the finite clement model is decomposed into a small domain and a large domain. The small domain contains a crack, while the large domain does not. In the small domain, advanced constitutive laws and criteria can be employed because of a small number of nodes. On the other hand, in the large domain, the decomposed model remains large-scale but becomes linear-elastic. Using the algorithm, fatigue crack propagation simulation with a three-dimensional finite element model is conducted for estimating the accuracy and the computation time.
