摘要
压力容器的失效通常发生在接管拐角部位,而失效的原因往往是拐角区裂纹的疲劳扩展。本文研究压力容器接管拐角裂纹前缘形状的变化规律,对裂纹扩展速率作进一步定量计算。实验验证表明,该研究结论是正确的。
The failure of presaure vessels often occurs at the corners of the cylinder nozzle due to the propagation of fatigue cracks.Here,the front- shape variation of nozzle corner cracks is studied,and a closer estimation of crack propagation rate is obtained and verified by experiments.
