Abstract: Based on the results of the experiments under in-plane point load, the paper analyzes the failure modes and the haiour for Arc spot welded stressed skin diaphragm in which there are intermediate pulins and there is no intermediate pulin, we put forward a lot of technical measures to ensure the quality of spot weld, and provide the value of the shear strength and stiffness for this sort of diaphramg.

Key words: diaphragm, are spot welded, the shear strength, the shear stiffness

摘要： 本文根据受力蒙皮组合体在平面抗剪试验的结果,分析了有中间檩条和无中间檩条的受力蒙皮体的破坏模式和工作性能提出了保证电弧点焊连接质量的一些技术措施,得出了这种蒙皮体的抗剪强度和抗剪刚度。

关键词: 受力蒙皮, 电弧点焊, 抗剪强度, 抗剪刚度