波纹管在外压—拉伸条件下的稳定性研究  

Research on Instability of Bellows under External Pressure with Tensile Displacement

作　　者：张道伟[1] 张巨[2] 刘艳江[3] 党如战[1] 段玫[1] 

机构地区：[1]洛阳船舶材料研究所,河南洛阳471039 [2]西安交通大学,陕西西安710049 [3]中国舰船研究院,北京100085

出　　处：《压力容器》2004年第4期13-16,26,共5页Pressure Vessel Technology

摘　　要：对波纹管在拉伸条件下的外压稳定性进行了试验研究和非线性有限元分析 ,结果表明拉伸位移对波纹管的外压稳定性有不利影响 ,失稳是由于某一波纹局部区域的大量塑性变形而产生的。同时指出 ,对于大口径外压波纹管 。Instability of bellows under external pressure with tensile displacement was researched by bellows instability tests and nonlinear finite element analysis. The results indicated that tensile displacement has adverse effect on bellows external pressure instability and that the instability is caused by gross plastic deformation in local region of a certain convolution. The paper also pointed out that the effect of circumferential stresses in large caliber external pressure bellows is great than that of meridional stresses.

关 键 词：波纹管 稳定性 外压 非线性有限元 

分 类 号：TQ051[化学工程]