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J-integral analysis of surface cracks in round bars under combined loadings

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Main Authors: A. Emran, Ismail, Ahmad Kamal, Ariffin, Shahrum, Abdullah, Mariyam Jameelah, Ghazali, Ruslizam, Daud, Dr.
Other Authors: emran@uthm.edu.my
Format: Article
Language:English
Published: Trans Tech Publications 2014
Subjects:
Finite element analysis
J-integral
Limit load
Stress intensity factor
Surface crack
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/35211
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spelling my.unimap-352112014-06-09T08:46:18Z J-integral analysis of surface cracks in round bars under combined loadings A. Emran, Ismail Ahmad Kamal, Ariffin Shahrum, Abdullah Mariyam Jameelah, Ghazali Ruslizam, Daud, Dr. emran@uthm.edu.my kamal@eng.ukm.my shahrum@eng.ukm.my mariyam@eng.ukm.my ruslizam@unimap.edu.my Finite element analysis J-integral Limit load Stress intensity factor Surface crack Link to publisher's homepage at http://www.ttp.net/ This paper presents a non-linear numerical investigation of surface cracks in round bars under combined bending and torsion loadings by using ANSYS finite element analysis (FEA). Due to the non-symmetrical analysis, a full finite element (FE) model was constructed and special attention was given at the crack tip of the cracks. The surface cracks were characterized by the dimensionless crack aspect ratio, a/b = 0.6, 0.8, 1.0 and 1.2, while the dimensionless relative crack depth, a/D = 0.1, 0.2 and 0.3. The square-root singularity of stresses and strains was modeled by shifting the mid-point nodes to the quarter-point locations in the region around the crack front. The proposed model was validated with the existing model before any further analysis. The elastic-plastic analysis under the loading was assumed to follow the Ramberg-Osgood relation with strain hardening exponent, n = 5 and 10. J values were determined for all positions along the crack front and then, the limit load was predicted using the J values obtained from FEA through the reference stress method. 2014-06-09T08:46:18Z 2014-06-09T08:46:18Z 2011-02 Article Advanced Materials Research, vol. 214, 2011, pages 187-191 1022-6680 (Print) 1662-8985 (Online) http://www.scientific.net/AMR.214.187 http://dspace.unimap.edu.my:80/dspace/handle/123456789/35211 10.4028/www.scientific.net/AMR.214.187 en Trans Tech Publications
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Finite element analysis
J-integral
Limit load
Stress intensity factor
Surface crack
spellingShingle Finite element analysis
J-integral
Limit load
Stress intensity factor
Surface crack
A. Emran, Ismail
Ahmad Kamal, Ariffin
Shahrum, Abdullah
Mariyam Jameelah, Ghazali
Ruslizam, Daud, Dr.
J-integral analysis of surface cracks in round bars under combined loadings
description Link to publisher's homepage at http://www.ttp.net/
author2 emran@uthm.edu.my
author_facet emran@uthm.edu.my
A. Emran, Ismail
Ahmad Kamal, Ariffin
Shahrum, Abdullah
Mariyam Jameelah, Ghazali
Ruslizam, Daud, Dr.
format Article
author A. Emran, Ismail
Ahmad Kamal, Ariffin
Shahrum, Abdullah
Mariyam Jameelah, Ghazali
Ruslizam, Daud, Dr.
author_sort A. Emran, Ismail
title J-integral analysis of surface cracks in round bars under combined loadings
title_short J-integral analysis of surface cracks in round bars under combined loadings
title_full J-integral analysis of surface cracks in round bars under combined loadings
title_fullStr J-integral analysis of surface cracks in round bars under combined loadings
title_full_unstemmed J-integral analysis of surface cracks in round bars under combined loadings
title_sort j-integral analysis of surface cracks in round bars under combined loadings
publisher Trans Tech Publications
publishDate 2014
url http://dspace.unimap.edu.my:80/dspace/handle/123456789/35211
_version_ 1643797755633598464
score 13.18916

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