外弯矩作用下焊接支管应力增大系数  

Stress Intensification Factor of Welded Branch Subjected to Moments

作　　者：李中央[1] 柳春图[2] 

机构地区：[1]中国寰球工程公司,北京100029 [2]中国科学院力学研究所,北京100081

出　　处：《化工设备与管道》2007年第4期52-55,共4页Process Equipment & Piping

摘　　要：通过大量的有限元计算,得出了关于焊接支管之平面内、外应力增大系数,弥补了在d/D>0.75时,ASMEB31.3规范应力值偏小问题,为管道应力分析结果的真实、可靠提供少许帮助。Through large amount of calculations based on finite element analysis, the stress intensification factors for welded branch inside and outside of the plane were obtained, which corrected the problem that the data given in B31.3 are at lower side in the ease that d/Di 〉 0.75. The data presented in this paper can be referenced in piping stress analysis to make the result more reliable.

关 键 词：有限元 焊接支管 应力增大系数 

分 类 号：TQ055.81[化学工程]