A mean strain or prestrain, as in FIG. 83, can under certain conditions reduce the subsequent fatigue life.
一个如图83所示的平均应变或预应变，在某种情况下，能够缩短以后的疲劳寿命。
The cumulative plastic strain energy increases with the increase of the loading frequency and stress level, which is linear with fatigue life on semilog coordinate.
累积塑性应变能随着加载频率及应力水平的增加而增加，与疲劳寿命在半对数坐标下呈线性关系。
At low and intermediate total strain amplitudes, the fatigue life was found to decrease with the increasing of temperature.
结果表明，在中等应变幅值之下，材料的疲劳寿命随温度的增加而降低。
应用推荐