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Evaluation of the overload effect on fatigue crack growth with the help of synchrotron XRD strain mapping

Abstract:

The overload retardation effect on fatigue crack growth rate (FCGR) in titanium alloy Ti-6Al-4V is studied. Synchrotron X-ray diffraction strain mapping of near-crack tip regions of pre-cracked fatigued samples is used to determine the effective stress intensity factors experienced by the crack tip. The effective stress intensity factor values are computed by finding the best match between the experimental strain maps and linear elastic fracture mechanics (LEFM) predictions. The dependence of...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
Journal:
ENGINEERING FRACTURE MECHANICS More from this journal
Volume:
77
Issue:
16
Pages:
3216-3226
Publication date:
2010-11-01
DOI:
ISSN:
0013-7944
Language:
English
Keywords:
Pubs id:
pubs:110296
UUID:
uuid:8e7eb532-f8f9-40cd-bcab-a326d9d480fe
Local pid:
pubs:110296
Source identifiers:
110296
Deposit date:
2012-12-19

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