期刊
ENGINEERING FRACTURE MECHANICS
卷 136, 期 -, 页码 195-212出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2015.01.029
关键词
Inclined kinked edge crack; Weight function; Stress intensity factors; Mixed mode
类别
资金
- Italian Ministry of Research and University (MIUR), within the research project entitled Theoretical and experimental analysis of mixed mode propagation of fatigue cracks emanating from sharp notches'' [PRIN 2009Z55NWC_004]
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.
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