Fatigue life (Nf). The total numberofstresscycles that will cause a fatigue failure at some specified stress amplitude.
疲劳寿命(Nf):在某一指定应力幅值下,引起疲劳失效的应力循环总数。
2
The exponential functions were used to reflect the relationship among fatigue stress, numberofstresscycles and environmental parameters. The fitting precision of the functions was relatively high.