CTEDに注目した応用形シミュレーションによる安定成長き裂挙動評価
1992 年 58 巻 545 号 p. 53-58
詳細
1992 年 58 巻 545 号 p. 53-58
In the previous papers, it was shown through the experiments of stable crack growth and corresponding generation phase simulations that the CTED (crack tip energy density) can express the fracture resistance of a material throughout the life of a crack consistently. In this paper, the simulation method of crack growth in the discontinuous model is studied first, and then, it is demonstrated that the crack growth behavior can be simulated well through the application phase simulation, if only the CTED value at the onset of crack growth, εIC(≃JIC), is given. Moreover, it is also shown that the so-called J-R curve, of which the evaluation has been possible only based on crack growth experiments, can be obtained through the above simulation.
