Apparently, unpredictable noise produces more fatigue than predictable noise, but it takes a while for this fatigue to take its toll on performance.
显然,预期之外的噪音比预期到的更容易使人疲惫,只是这种疲惫要过一会才能在人的身上体现出来。
The main reason for the fatigue life enhancement is correlated with the enlarged dimples and more fatigue sources on the fracture surface.
微观分析表明,疲劳断口上韧窝的增大增深、疲劳源数量增加等是疲劳寿命增加的主要原因。
Fracture morphology is more rough in room temperature, low fatigue stress and more fatigue cycles, but the length of fiber pullout is longer.
室温及疲劳循环应力低、循环周次多的断口粗糙度大,纤维拔出较长;
应用推荐