Plastic limit analysis of defective piping systems

被引：0

作者：

Yang, B. ^{[1
]}

Chen, G. ^{[1
]}

Liu, Y.H. ^{[1
]}

Xu, B.Y. ^{[1
]}

机构：

[1] Dept. of Eng. Mech., Tsinghua Univ., Beijing 100084, China

来源：

| 2001年 / Press of Tsinghua University卷 / 41期

关键词：

Analysis - Defects - Mathematical programming - Plasticity - Structures (built objects) - Three dimensional;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In most cases, piping systems will experience the combination action of internal pressure and temperature. The limit analysis can be used to estimate the carrying capacity of a piping system. This piping system was analysed in the paper with one dimensional elastic method. The key part of the piping system was also analyzed with the 3-D limit analysis method to estimate the carrying capacity of the whole piping system. A direct iterative algorithm was used to determine the kinematic limit load of the 3-D structure. The effects of four kinds of typical slots on the limit loads of pipe elbows were investigated in detail. The failure modes corresponding to the different slot configurations were studied.

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