The Dugdale solution for two unequal straight cracks weakening in an infinite plate

被引：6
|
作者：
Bhargava, R. R. [1 ]
Hasan, Shehzad [2 ]
机构：
[1] Indian Inst Technol, Dept Math, Roorkee 247667, Uttar Pradesh, India
[2] Jamia Millia Islamia, Dept Math, New Delhi 110025, India
来源：
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES | 2010年 / 35卷 / 01期
关键词：
Crack arrest; Dugdale model; plastic zone; MODEL;
D O I：
10.1007/s12046-010-0003-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A crack arrest model is proposed for an infinite elastic perfectly-plastic plate weakened by two unequal, quasi-static, collinear straight cracks. The Dugdale model solution is obtained for the above problem when the developed plastic zones are subjected to normal cohesive quadratically varying yield point stress. Employing complex variable technique and the superposition principle the desired solution is obtained. A qualitative study of load required to arrest the plastic zones opening with respect to affecting parameters viz. inter-crack distance, plastic zone and crack length is carried out. The results obtained are presented graphically.
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页码：19 / 29
页数：11
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