Effects of local wall thinning on net-section limit loads for pipes under combined pressure and bending

被引：37

作者：

Oh, Chang-Kyun ^{[2
]}

Kim, Yun-Jae ^{[1
]}

Park, Chi-Yong ^{[3
]}

机构：

[1] Dept Mech Engn, Seoul 136701, South Korea

[2] Korea Power Engn Co, Struct Integr & Mat Dept, Yongin 449713, Gyeonggi Do, South Korea

[3] Korea Elect Power Res Inst, Taejon 305380, South Korea

来源：

NUCLEAR ENGINEERING AND DESIGN | 2009年 / 239卷 / 02期

关键词：

CARBON-STEEL PIPE; FRACTURE-BEHAVIOR; CYLINDERS; STRENGTH; CRACKS; YIELD;

D O I：

10.1016/j.nucengdes.2008.10.019

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

This paper provides plastic limit loads of pipes with local wall thinning under combined pressure and bending, by quantifying effects of the axial extent and the shape of local wall thinning. The effect of the axial extent on plastic limit loads is not so significant for bending but could be more significant for internal pressure. It is also found that the effect of the shape of local wall thinning on limit loads could be significant. Thus idealization of local wall thinning as a rectangular shape rather than a circular one could lead to significantly conservative estimates of maximum loads, which is also supported by comparison with published full-scale pipe test data. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：261 / 273

页数：13

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