If the plastoelastic fatiguenotchfactor was regarded as the transforming factor of damage calculation, the data scattering zone of life curve was most narrow.
采用此方法确定疲劳缺口系数，获得的损伤参量与裂纹形成寿命关系的数据分散带最窄。
2
The fatiguenotchfactor is introduced as the ratio of average stress over the region of a critic distance around critic point to the hot spot stress.