A novel weight function for RMS stress intensity factor determination in surface cracks
Date published
2010-01
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Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Department
Type
Article
ISSN
0013-7944
Format
Citation
A. Chahardehi, F.P. Brennan, A novel weight function for RMS stress intensity factor determination in surface cracks, Engineering Fracture Mechanics, Volume 77, Issue 2, Microstructurally Based Fracture Mechanics, January 2010, Pages 367-373
Abstract
This paper discusses the problem of stress intensity factor determination in surface cracks. In particular, the concept of root mean square stress intensity factors (RMS SIF) is discussed for the general class of semi-elliptical surface cracks. The weight function SIF derivation method is considered problems with the existing techniques are highlighted, and a novel technique for the derivation of the RMS SIF weight functions for surface cracks is presented and results are compared with numerical solutions for a variety of loadings and geometries.
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Github
Keywords
Stress intensity factor, Weight function, Crack aspect ratio, Paris law, Surface crack, RMS SIF