Effect of closure of collinear cracks on the stress-strain state and the limiting equilibrium of bent shallow shells

被引：15

作者：

Shatskii, I. P. ^{[1
]}

Makoviichuk, N. V. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Ivano Frankovsk Sector, Podstrigach Inst Appl Problems Mech & Math, UA-76000 Ivano Frankovsk, Ukraine

来源：

JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2011年 / 52卷 / 03期

关键词：

shell; bending; crack closure; strength;

D O I：

10.1134/S0021894411030175

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The problem of closure of collinear cracks during bending of a shallow shell is considered within the framework of the Kirchhoff theory. Crack closure is described using the model of contact along a line on one of the shell faces. Strain and moment intensity factors and fracture load are studied as functions of shell curvature and defect location, and the distribution of contact forces along the cracks is investigated.

引用

页码：464 / 470

页数：7

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