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A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending

D.G. Leo Prakash, W.J.J. Vorster, Shu Yan Zhang, A. Korsunsky, Leo Prakash Orcid Logo

Materials Science Forum, Volume: 571-572, Pages: 113 - 118

Swansea University Author: Leo Prakash Orcid Logo

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Abstract

This paper presents a study of the residual strain field within a high pressure die cast (HPDC) AZ91 Mg alloy bar subjected to four point bending. The technique employed for this purpose is high energy synchrotron X-ray diffraction. Strain scanning using polychromatic X-ray beam allows the collectio...

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Published in: Materials Science Forum
Published: 2008
URI: https://cronfa.swan.ac.uk/Record/cronfa17652
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spelling 2015-11-02T14:30:39.7535265 v2 17652 2014-04-01 A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending bd72868c48af6c0b04bf9f6bb48ce324 0000-0002-8812-8927 Leo Prakash Leo Prakash true false 2014-04-01 MTLS This paper presents a study of the residual strain field within a high pressure die cast (HPDC) AZ91 Mg alloy bar subjected to four point bending. The technique employed for this purpose is high energy synchrotron X-ray diffraction. Strain scanning using polychromatic X-ray beam allows the collection of multiple peak diffraction patterns and monitoring of small peak shifts as a function of beam position. These shifts allow collective interpretation in terms of the equivalent macroscopic residual elastic strain. Residual elastic strain distributions were studied in the sections subjected to pure bending and also in sections of contact between the sample and the rollers. These experimental results are compared with the predictions from a finite element analysis of contact and deformation. Good agreement is found between the modelled and measured results. It is hoped that these results help improved understanding of complex deformation behaviour of thin-walled HPDC AZ91 components and provide useful background information for lifing assessment of such structures. Journal Article Materials Science Forum 571-572 113 118 AZ91 Alloy, Finite Element Analysis (FEA), Four-Point Bending, Residual Strain, X-ray Synchrotron Diffraction 7 3 2008 2008-03-07 10.4028/www.scientific.net/MSF.571-572.113 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2015-11-02T14:30:39.7535265 2014-04-01T11:29:45.9078850 College of Engineering Engineering D.G. Leo Prakash 1 W.J.J. Vorster 2 Shu Yan Zhang 3 A. Korsunsky 4 Leo Prakash 0000-0002-8812-8927 5
title A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
spellingShingle A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
Leo Prakash
title_short A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
title_full A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
title_fullStr A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
title_full_unstemmed A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
title_sort A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending
author_id_str_mv bd72868c48af6c0b04bf9f6bb48ce324
author_id_fullname_str_mv bd72868c48af6c0b04bf9f6bb48ce324_***_Leo Prakash
author Leo Prakash
author2 D.G. Leo Prakash
W.J.J. Vorster
Shu Yan Zhang
A. Korsunsky
Leo Prakash
format Journal article
container_title Materials Science Forum
container_volume 571-572
container_start_page 113
publishDate 2008
institution Swansea University
doi_str_mv 10.4028/www.scientific.net/MSF.571-572.113
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 0
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description This paper presents a study of the residual strain field within a high pressure die cast (HPDC) AZ91 Mg alloy bar subjected to four point bending. The technique employed for this purpose is high energy synchrotron X-ray diffraction. Strain scanning using polychromatic X-ray beam allows the collection of multiple peak diffraction patterns and monitoring of small peak shifts as a function of beam position. These shifts allow collective interpretation in terms of the equivalent macroscopic residual elastic strain. Residual elastic strain distributions were studied in the sections subjected to pure bending and also in sections of contact between the sample and the rollers. These experimental results are compared with the predictions from a finite element analysis of contact and deformation. Good agreement is found between the modelled and measured results. It is hoped that these results help improved understanding of complex deformation behaviour of thin-walled HPDC AZ91 components and provide useful background information for lifing assessment of such structures.
published_date 2008-03-07T03:27:30Z
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score 10.918746