焊接结构的疲劳评定

Fatigue Assessment of Welded Structures

一般在设计过程中即避免了结构疲劳寿命的降低。本文回顾了焊接结构疲劳的评定方法，包括设计规范、断裂力学方法，及它们在工程应用中的误差来源。并讨论了用以检测或延长结构疲劳寿命的措施。

Reduction in the life of a strcture is avoided largly by design.This paper reviews fatigue assessment methods for welded structures,including design rules and fracture mechanics,and sources of error in their applicantion.Measures which might be taken to check or extend fatigue lives are also discussed.