U形无加强波纹管平面失稳判据研究  

Research on Criterion in the In-plane Instability of Non-reinforced U-shape bellows

作　　者：陈晔[1] 李永生[1] 顾伯勤[1] 刘艳江[2] 段玫 常谦 

机构地区：[1]南京化工大学 [2]中船725所

出　　处：《压力容器》2000年第6期10-14,73,共6页Pressure Vessel Technology

摘　　要：本文采用了理论分析及非线性有限元分析的方法探讨了单纯内压载荷以及内压—轴向压缩位移载荷下U形无加强波纹管平面失稳的应力判据。与实验结果的对比表明在这两种载荷下 ,U形无加强波纹管平面失稳与否主要取决于波纹管波峰、波谷以及环板中塑性区的产生与扩展。In this paper,the theoretic analysis and the Finite Element Analysis is presented to find out criterion in the in-plane instability of non-reinforced U-shape bellows under pressure loads or pressure-compress loads.The calculation and the experimental results indicate that the in-plane instability of non-reinforced U-shape bellows relies on the appearance of plastic region in the roots,crowns and circular planes of bellows.

关 键 词：波纹管 平面失稳 塑性铰 非线性 有限元分析 

分 类 号：U173.1[交通运输工程]