Comparison of the constraint parameters in elastic-plastic fracture mechanics

被引：4
|
作者：
Matvienko, Yu. G. [1 ]
机构：
[1] Russian Acad Sci, Mech Engn Res Inst, 4 M Kharitonievsky Per, Moscow 101990, Russia
来源：
FRATTURA ED INTEGRITA STRUTTURALE | 2019年 / 49期
基金：
俄罗斯科学基金会;
关键词：
Constraint parameters; Elastic-plastic fracture mechanics; CRACK-TIP FIELDS; TRIAXIALITY PARAMETER; INPLANE; STRESS; FAMILY;
D O I：
10.3221/IGF-ESIS.49.04
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To describe the effect of crack-tip constraint on the stress field for finite cracked bodies, the following most widely used constraint parameters can be employed in elastic-plastic fracture mechanics, namely, local triaxiality parameter, constraint parameter Q, the second fracture mechanics parameter A using a three-term elastic-plastic asymptotic expansion. To establish the relationship between different constraint parameters, the crack-tip stress fields are employed. Relationship between the crack-tip constraint parameters A, A(2), Q and (S) over bar (p) of elastic-plastic fracture mechanics is investigated.
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页码：36 / 43
页数：8
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