Due to the complexity of loading case in dimple jacket weld,the problem of leakage is always happened in weld,which is induced by cracks in weld.

• 由于蜂窝夹套焊缝受力情况比较复杂,焊接部位经常出现焊缝开裂引起泄漏,焊接残余应力是重要的影响因素之一。