摘要
影响金属材料疲劳寿命的因素很多,使得预测疲劳寿命十分复杂,目前预测方法主要有:名义应力法,局部应力应变法,断裂力学法等。简述了当前国内外在这方面的研究进展,以及疲劳寿命预测在结构寿命设计及损伤容限设计上的重要意义。
There are many objectives affect the metal material fatigue life,they made the fatigue life prediction quite complicate.Nowadays,the prediction methods are nominal stress method,local stress-strain method,fracture force mechanics method,etc.This paper introduced the recent researching progress in the world,and introduced the important significance of fatigue life prediction in structure life design and damage limitation design.
出处
《太原科技》
2008年第2期70-72,共3页
Taiyuan Science and Technology
关键词
金属材料
疲劳寿命
进展
metal material
fatigue life
progress