The probability fatiguelife - span of pressure vessel under the action of different cycle load is closely related to the cycle load with high stress.
承受不同循环载荷共同作用的压力容器，其概率疲劳寿命和在高应力水平上的循环载荷有着密切的关系。
2
The factor of life scatter is used for depicting the dispersibility of fatigue strength in low cycle fatigue, but in high cycle fatigue is the fatigue strength reduction factor.
低周疲劳常采用寿命分散系数描述结构疲劳强度的固有分散性，而高周疲劳采用疲劳强度减缩系数来描述。
3
But for the specimens of highcyclefatigue damaged, the annealing can not increase the total life.