概率循环应变—寿命曲线
Probability based cyclic strain life curves
管道环向变形
circular deformation of pipeline
厚环向变形比
thickness to circle deformation ratio
随机循环应变-寿命关系
Random cyclic strain-life relations
循环应变-寿命关系
Cyclic train-life relation
应力-应变环境
environment of stress strain