Strength differential effect and influence of strength criterion on burst pressure of thin-walled pipelines

作     者：金乘武 王立忠 张永强 Cheng-wu JIN;Li-zhong WANG;Yong-qiang ZHANG

作者机构：Department of Engineering MechanicsZhejiang University College of Civil Engineering and ArchitectureZhejiang University 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2012年第33卷第11期

页      面：1361-1370页

核心收录：

学科分类：08[工学] 0823[工学-交通运输工程] 

基　　金：Project supported by the National Natural Science Foundation of China (Nos. 51079128 and11172265) the Natural Science Foundation of Zhejiang Province of China (No. Y1101107) 

主　　题：burst pressure unified strength criterion thin-walled pipe finite strain 

摘      要：In the framework of the finite deformation theory, the plastic collapse analysis of thin-walled pipes subjected to the internal pressure is conducted on the basis of the unified strength criterion （USC）. An analytical solution of the burst pressure for pipes with capped ends is derived, which includes the strength differential effect and takes the influence of strength criterion on the burst pressure into account. In addition, a USC- based analytical solution of the burst pressure for end-opened pipes under the internal pressure is obtained. By discussion, it is found that for the end-capped pipes, the influence of different yield criteria and the strength differential effect on the burst pressure are significant, while for the end-opened pipes, the burst pressure is independent of the specific form of the strength criterion and strength difference in tension and compression.