拡張有限要素法 (X-FEM) による疲労き裂進展シミュレーション

抄録

This paper presents a simulation analysis of fatigue crack growth by X-FEM (eXtended Finite Element Method). It is necessary to estimate fatigue crack growth accurately for prevention of fatigue fractures. In this simulation, the effective stress intensity factor range is applied to the propagation law of JSSC. To investigate applicability of the simulation, fatigue crack propagation analysis for linear crack was compared with experimental results of the past fatigue tests under constant amplitude loading at various stress ratios and biaxial forces.