Applied Mathematics and Mechanics (English Edition) ›› 2012, Vol. 33 ›› Issue (11): 1361-1370.doi: https://doi.org/10.1007/s10483-012-1628-7

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

金乘武1, 王立忠2, 张永强2   

  1. 1. Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, P. R. China;
    2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, P. R. China
  • 收稿日期:2011-11-30 修回日期:2012-06-20 出版日期:2012-11-10 发布日期:2012-11-10
  • 通讯作者: Yong-qiang ZHANG, Professor, Ph.D., E-mail: cyqzhang@zju.edu.cn E-mail:cyqzhang@zju.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Nos. 51079128 and 11172265) and the Natural Science Foundation of Zhejiang Province of China (No.Y1101107)

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

Cheng-wu JIN1, Li-zhong WANG2, Yong-qiang ZHANG2   

  1. 1. Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, P. R. China;
    2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, P. R. China
  • Received:2011-11-30 Revised:2012-06-20 Online:2012-11-10 Published:2012-11-10
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 51079128 and 11172265) and the Natural Science Foundation of Zhejiang Province of China (No.Y1101107)

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 USCbased 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.

关键词: burst pressure, unified strength criterion, thin-walled pipe, finite strain, initial value problem, integro-partial differential equation, classical solution

Abstract: 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 USCbased 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.

Key words: burst pressure, unified strength criterion, thin-walled pipe, finite strain, initial value problem, integro-partial differential equation, classical solution

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