A fully parametric weight function for inclined edge cracks with a kink

被引：11

作者：

Benedetti, M. ^{[1
]}

Fontanari, V. ^{[1
]}

Monelli, B. D. ^{[2
]}

Beghini, M. ^{[2
]}

机构：

[1] Univ Trento, Dept Ind Engn, I-38123 Trento, Italy

[2] Univ Pisa, Dept Civil & Ind Engn, I-56122 Pisa, Italy

来源：

ENGINEERING FRACTURE MECHANICS | 2015年 / 136卷

关键词：

Inclined kinked edge crack; Weight function; Stress intensity factors; Mixed mode; STRESS INTENSITY FACTORS; SINGULAR INTEGRAL-EQUATIONS; PLANE SITUATIONS; ACCURATE; EXPANSION; PATHS; NOTCH; FORM;

D O I：

10.1016/j.engfracmech.2015.01.029

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A fully parametric weight function (WF) is proposed for determining the stress intensity factors (SIFs) of an inclined edge crack carrying a terminal kink. The WF can evaluate with accuracy better than 0.4% the SIFs for cracks with initial inclination angle in the range [-60 degrees,60 degrees], kinking angle in the range [-90 degrees,90 degrees], and the ratio of kinked-to-initial-cracklength in the range [0,1/4]. For inclined straight edge cracks, the WF accuracy is better than that of WFs derived so far. The online version of the paper is provided with a MATLAB (R) script containing functions that return the WF components and the SIFs. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：195 / 212

页数：18

共 41 条

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