Plastic limit load analysis of defective pipelines

被引：0

作者：

Chen, G ^{[1
]}

Liu, YH

Xu, BY

机构：

[1] Gen Adm Qual Supervis Inspect & Quarantine, Ctr Boiler & Pressure Vessel Inspect & Res, Beijing 100013, Peoples R China

[2] Tsing Hua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

来源：

ACTA MECHANICA SOLIDA SINICA | 2003年 / 16卷 / 02期

关键词：

limit load; iterative algorithm; defective pipeline; complex loadings;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The integrity assessment of defective pipelines represents a practically important task of structural analysis and design in various technological areas, such as oil and gas industry, power plant engineering and chemical factories. An iterative algorithm is presented for the kinematic limit analysis of 3-D rigid-perfectly plastic bodies. A numerical path scheme for radial loading is adopted to deal with complex multi-loading systems. The numerical procedure has been applied to carry out the plastic collapse analysis of pipelines with part-through slot under internal pressure, bending moment and axial force. The effects of various shapes and sizes of part-through slots on the collapse loads of pipelines are systematically investigated and evaluated. Some typical failure modes corresponding to different configurations of slots and loading forms are studied.

引用

页码：102 / 109

页数：8

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