To achieve fatigue life prediction of vehicle welded structure during design phase,practical analysis methods are presented by means of fatigue analysis principle and fatigue performance parameter of welded structure of AAR / BS / IIW standard.

• 为在设计阶段实现车辆焊接结构的抗疲劳设计,在研究AAR/BS/IIW标准的疲劳算法原理和焊接接头疲劳性能参数的基础上,给出基于AAR/BS/IIW标准进行车辆焊接结构疲劳寿命评估的方法和技术路线。