THE INFLUENCE OF MATERIAL PROPERTIES AND CRACK LENGTH ON THE Q-STRESS VALUE NEAR THE CRACK TIP FOR ELASTIC-PLASTIC MATERIALS FOR CENTRALLY CRACKED PLATE IN TENSION

被引：0
作者：
Graba, Marcin [1 ]
机构：
[1] Kielce Univ Technol, Fac Mechatron & Machine Design, Kielce, Poland
来源：
JOURNAL OF THEORETICAL AND APPLIED MECHANICS | 2012年 / 50卷 / 01期
关键词：
fracture mechanics; cracks; Q-stress; stress fields; HRR solution; FEM; J-integral; O'Dowd theory; MATERIAL CONSTRAINT PARAMETERS; STRUCTURAL COMPONENTS; TRIAXIALITY PARAMETER; SHALLOW DEFECTS; FIELDS; FAMILY;
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In the paper, values of the Q-stress determined for various elastic-plastic materials for centre cracked plate in tension (CC(T)) are presented. The influence of the yield strength, the work-hardening exponent and the crack length on the Q-parameter was tested. The numerical results were approximated by closed form formulas. This paper is a continuation of the catalogue of the numerical solutions presented in 2008, which presents Q-stress solutions for single edge notch specimens in bending - SEN(B). Both papers present full numerical results and their approximation for two basic specimens which are used to determine in the laboratory tests the fracture toughness - J-integral, and both specimens are proposed by FITNET procedure used to idealize the real components.
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页码：23 / 46
页数：24
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