Mode-I stress intensity factors for cracked fin-shaped shell under bending

被引：1

作者：

Yuan, W. J. ^{[1
,2
]}

Xie, Y. J. ^{[2
]}

机构：

[1] China Univ Petr East China, Coll Pipeline & Civil Engn, Qingdao 266580, Shandong, Peoples R China

[2] Liaoning Shihua Univ, Sch Mech Engn, Fushun 113001, Liaoning, Peoples R China

来源：

ACTA MECHANICA | 2021年 / 232卷 / 02期

关键词：

MULTIPLE CRACKS; BEAMS; INITIATION; DIRECTION; PIPES;

D O I：

10.1007/s00707-020-02856-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Determining the stress intensity factor (SIF) for cracked engineering structures under different loading conditions is one of the core issues of fracture analysis. A slender fin-shaped shell possesses both shell and beam characteristics, in the cross section of which some complex cracks, such as the circumferential and T-shaped cracks, may arise. There will be different singular stress fields next to crack tips for a cracked fin-shaped shell under bending. Based on the conservation law and elementary mechanics, a technique to determine SIFs is proposed in this article, which is simple and easy to understand. The SIFs calculated using the present method agree well with FEM results even if elementary mechanics is used.

引用

页码：619 / 637

页数：19

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