摘要
航空结构件中最常见的损伤为疲劳裂纹,损伤维修需要考虑经济性、易操作性、维修后的力学性能等因素。本文针对不同裂纹长度的中心裂纹板,分别采用传统的止裂孔和先进的搅拌摩擦焊技术进行修理,对修理后的裂纹扩展寿命进行了对比分析。结果表明,两种修理方法均延长了中心裂纹板的使用寿命,搅拌摩擦焊延长效果更好,为后续工程应用提供技术参考。
The most common damage in aviation structural parts is fatigue crack.The damage maintenance needs to consider factors such as economy,easy-operation,and mechanical properties.In this paper,the central crack plate with different crack lengths is studied.The crack extension life was compared and analyzed by using the traditional stop-hole and advanced friction stir welding.The results show that the two repair methods extend the service life of the central crack plate,and the friction stir welding extends the effect better.
作者
党堃
董登科
陈莉
张侃
Dang Kun;Dong Dengke;Chen Li;Zhang Kan(Aircraft Strength Research Institute of China,Xi'an Shaanxi 710065,China)
出处
《工程与试验》
2019年第2期22-23,28,共3页
Engineering and Test
