Stress intensity factors around a 3D squat form crack and prediction of crack growth direction considering water entrapment and elastic foundation

Farjoo, Mohammadali, Pal, Sarvesh, Daniel, William J.T. and Meehan, Paul A. (2012) Stress intensity factors around a 3D squat form crack and prediction of crack growth direction considering water entrapment and elastic foundation. Engineering Fracture Mechanics, 94 37-55. doi:10.1016/j.engfracmech.2012.07.011


Author Farjoo, Mohammadali
Pal, Sarvesh
Daniel, William J.T.
Meehan, Paul A.
Title Stress intensity factors around a 3D squat form crack and prediction of crack growth direction considering water entrapment and elastic foundation
Journal name Engineering Fracture Mechanics   Check publisher's open access policy
ISSN 0013-7944
1873-7315
Publication date 2012-11
Sub-type Article (original research)
DOI 10.1016/j.engfracmech.2012.07.011
Volume 94
Start page 37
End page 55
Total pages 19
Place of publication Oxford, United Kingdom
Publisher Pergamon
Collection year 2013
Language eng
Abstract In this paper, the stress intensity factors (SIFs) around a 3D semi-elliptical squat on a rail surface are investigated. Elastic foundation and water trapped inside the crack are considered as key factors in crack propagation. It is found that the opening mode and shear modes show different behavior compared with former models. Also the lateral load can change the SIF pattern significantly. The superposition traction ratio and lateral load can increase the equivalent SIF up to 200%. This study confirms the pressurized water in a crack changes crack propagation direction making a squat.
Keyword Squat
Finite element method
Crack propagation
Stress intensity factor
Elastic foundation effects
Water entrapment
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2013 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 10 times in Scopus Article | Citations
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Created: Thu, 06 Sep 2012, 14:00:03 EST by Rose Clements on behalf of School of Mechanical and Mining Engineering