摘要
焊接结构的疲劳强度是焊接结构完整性的重要保证。焊接结构的疲劳强度取决于整体结构构造及接头特征等因素,焊接结构的疲劳评定需要考虑焊接接头类型及局部力学行为等不同结构层次的作用。目前已发展了名义应力评定方法、结构应力评定方法、局部应力应变评定方法和断裂力学评定方法。
Fatigue strength of welded structures is very important to guarantee the integrity of welded structures. The fatigue strength of welded structure depends on factors such as the whole structure and the joint detail features etc. The influence of the type of welded joints and local behavior should be taken into consideration in the fatigue assessment of welded structures. At present four kinds of assessment methods such as nominal stress, structural stress, local stress and strain and fracture mechanics have been developed.
出处
《航空制造技术》
2016年第11期51-56,共6页
Aeronautical Manufacturing Technology
关键词
焊接结构
疲劳强度
疲劳评定方法
Welded structure
Fatigue strength
Fatigue assessment method
