应力水平 | 形状参数β | 尺度参数η | 平均寿命(次) |
70% | 2.78 | 188,618 | 167,910 |
65% | 2.06 | 586,280 | 519,350 |
60% | 4.53 | 948,106 | 865,550 |
55% | 5.42 | 1,798,051 | 1,658,600 |