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Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique

The crack growth retardation and the location of fatigue crack initiation from stop-hole edge under different mode-mixities are examined in this paper by means of a developed fatigue code. Different loading conditions have been generated by using a mixed-mode CT specimen made of Al6061-T651. The num...

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Main Authors: Ayatollahi, Majid Reza, Razavi, Seyed Mohammad Javad, Yahya, Mohd. Yazid
Format: Article
Published: Elsevier Ltd. 2015
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/58569/
http://dx.doi.org/10.1016/j.engfracmech.2015.03.027
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spelling my.utm.585692021-12-08T08:45:57Z http://eprints.utm.my/id/eprint/58569/ Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique Ayatollahi, Majid Reza Razavi, Seyed Mohammad Javad Yahya, Mohd. Yazid TJ Mechanical engineering and machinery The crack growth retardation and the location of fatigue crack initiation from stop-hole edge under different mode-mixities are examined in this paper by means of a developed fatigue code. Different loading conditions have been generated by using a mixed-mode CT specimen made of Al6061-T651. The numerical results reveal that in the presence of stop holes the reduction in the stress concentration becomes larger for mode-II loading conditions. A comparison between the reported experimental results and the obtained computational results shows that the fatigue life extension of repaired specimens can be well predicted by the numerical model developed in this study. Elsevier Ltd. 2015 Article PeerReviewed Ayatollahi, Majid Reza and Razavi, Seyed Mohammad Javad and Yahya, Mohd. Yazid (2015) Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique. Engineering Fracture Mechanics, 145 . pp. 115-127. ISSN 0013-7944 http://dx.doi.org/10.1016/j.engfracmech.2015.03.027 DOI:10.1016/j.engfracmech.2015.03.027
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Ayatollahi, Majid Reza
Razavi, Seyed Mohammad Javad
Yahya, Mohd. Yazid
Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique
description The crack growth retardation and the location of fatigue crack initiation from stop-hole edge under different mode-mixities are examined in this paper by means of a developed fatigue code. Different loading conditions have been generated by using a mixed-mode CT specimen made of Al6061-T651. The numerical results reveal that in the presence of stop holes the reduction in the stress concentration becomes larger for mode-II loading conditions. A comparison between the reported experimental results and the obtained computational results shows that the fatigue life extension of repaired specimens can be well predicted by the numerical model developed in this study.
format Article
author Ayatollahi, Majid Reza
Razavi, Seyed Mohammad Javad
Yahya, Mohd. Yazid
author_facet Ayatollahi, Majid Reza
Razavi, Seyed Mohammad Javad
Yahya, Mohd. Yazid
author_sort Ayatollahi, Majid Reza
title Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique
title_short Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique
title_full Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique
title_fullStr Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique
title_full_unstemmed Mixed mode fatigue crack initiation and growth in a CT specimen repaired by stop hole technique
title_sort mixed mode fatigue crack initiation and growth in a ct specimen repaired by stop hole technique
publisher Elsevier Ltd.
publishDate 2015
url http://eprints.utm.my/id/eprint/58569/
http://dx.doi.org/10.1016/j.engfracmech.2015.03.027
_version_ 1720436880278814720
score 13.160551

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