浅析应力集中对焊接接头疲劳强度的影响  

Influence of Stress Concentration on Fatigue Strength of Welded Joint

作　　者：周瑾[1] 祁文军[1] 薛强[1] 

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830008

出　　处：《机械工程与自动化》2010年第2期212-213,216,共3页Mechanical Engineering & Automation

摘　　要：焊接结构能否承受交变动载荷主要是看焊接接头的疲劳强度。应力集中是造成焊接疲劳的一个重要因素,采用改善焊缝几何形状、焊接接头类型等措施来降低应力集中可以有效地提高焊接接头的疲劳强度。Fatigue of welded structures often generates at the welding joints. The load bearing capacity of a welded structure depends on the fatigue strength of the welded joint. The stress concentration is an important factor influencing welding fatigue. Improvingthe geometry of welding seam and the type of welding joint can effectively improve the fatigue strength of welding joint.

关 键 词：应力集中 疲劳强度 焊接接头 焊接缺陷 

分 类 号：TG44[金属学及工艺—焊接]