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Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test / R.J. Lancaster, S.P. Jeffs, H.W. Illsley, C. Argyrakis, R.C. Hurst, G.J. Baxter, Robert Lancaster, Spencer Jeffs

Materials Science and Engineering: A, Volume: 748, Pages: 21 - 29

Swansea University Authors: Robert Lancaster, Spencer Jeffs

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Abstract

Small scale mechanical test methods are now widely recognised as an established and quantifiable means of obtaining useful mechanical property information from limited material quantities. Much research has been gathered employing such approaches, but to date these methods have largely been restrict...

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Published in: Materials Science and Engineering: A
ISSN: 0921-5093
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa48614
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spelling 2020-06-30T16:55:44.1534536 v2 48614 2019-01-29 Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false 6ff76d567df079d8bf299990849c3d8f 0000-0002-2819-9651 Spencer Jeffs Spencer Jeffs true false 2019-01-29 MTLS Small scale mechanical test methods are now widely recognised as an established and quantifiable means of obtaining useful mechanical property information from limited material quantities. Much research has been gathered employing such approaches, but to date these methods have largely been restricted to characterising the creep, tensile and fracture characteristics of numerous materials and alloys through the small punch (SP) test. Clearly, a key element that is missing from this list of fundamental mechanical properties is understanding the cyclic response of the material, a significant form of damage that accounts for a large proportion of in-service failures in critical structural components. Therefore, in order to profit from the numerous benefits that SP testing has to offer, including a small sample size and hence reduced cost, a small scale fatigue testing methodology is now required to provide a holistic mechanical property evaluation. Such an innovative approach would provide real potential benefit to the engineering mechanical characterisation community. This paper will discuss the development and implementation of this highly bespoke SP fatigue testing methodology that can accommodate alternative loading ratios and frequencies to mimic conventional fatigue data. A number of novel experiments have been performed on the titanium alloy Ti-6Al-4V with accompanying analysis and fractography detailed. Numerical correlations to uniaxial fatigue data is also presented through the use of Finite Element Analysis. Journal Article Materials Science and Engineering: A 748 21 29 0921-5093 Titanium alloys, Small punch test, Fatigue, Fractography, Finite element analysis, Numerical correlations 4 3 2019 2019-03-04 10.1016/j.msea.2019.01.074 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University UKRI, EP/H022309/1 2020-06-30T16:55:44.1534536 2019-01-29T12:31:12.3322470 College of Engineering Engineering R.J. Lancaster 1 S.P. Jeffs 2 H.W. Illsley 3 C. Argyrakis 4 R.C. Hurst 5 G.J. Baxter 6 Robert Lancaster 0000-0002-1365-6944 7 Spencer Jeffs 0000-0002-2819-9651 8 0048614-13032019143351.pdf 48614.CCBY.pdf 2019-03-13T14:33:51.4230000 Output 6958757 application/pdf Corrected Version of Record true 2019-03-12T00:00:00.0000000 Distributed under the terms of a Creative Commons CC-BY Attribution 4.0 License. true eng
title Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
spellingShingle Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
Robert, Lancaster
Spencer, Jeffs
title_short Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
title_full Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
title_fullStr Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
title_full_unstemmed Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
title_sort Development of a Novel Methodology to Study Fatigue Properties using the Small Punch Test
author_id_str_mv e1a1b126acd3e4ff734691ec34967f29
6ff76d567df079d8bf299990849c3d8f
author_id_fullname_str_mv e1a1b126acd3e4ff734691ec34967f29_***_Robert, Lancaster
6ff76d567df079d8bf299990849c3d8f_***_Spencer, Jeffs
author Robert, Lancaster
Spencer, Jeffs
author2 R.J. Lancaster
S.P. Jeffs
H.W. Illsley
C. Argyrakis
R.C. Hurst
G.J. Baxter
Robert Lancaster
Spencer Jeffs
format Journal article
container_title Materials Science and Engineering: A
container_volume 748
container_start_page 21
publishDate 2019
institution Swansea University
issn 0921-5093
doi_str_mv 10.1016/j.msea.2019.01.074
college_str College of Engineering
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hierarchy_top_title College of Engineering
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description Small scale mechanical test methods are now widely recognised as an established and quantifiable means of obtaining useful mechanical property information from limited material quantities. Much research has been gathered employing such approaches, but to date these methods have largely been restricted to characterising the creep, tensile and fracture characteristics of numerous materials and alloys through the small punch (SP) test. Clearly, a key element that is missing from this list of fundamental mechanical properties is understanding the cyclic response of the material, a significant form of damage that accounts for a large proportion of in-service failures in critical structural components. Therefore, in order to profit from the numerous benefits that SP testing has to offer, including a small sample size and hence reduced cost, a small scale fatigue testing methodology is now required to provide a holistic mechanical property evaluation. Such an innovative approach would provide real potential benefit to the engineering mechanical characterisation community. This paper will discuss the development and implementation of this highly bespoke SP fatigue testing methodology that can accommodate alternative loading ratios and frequencies to mimic conventional fatigue data. A number of novel experiments have been performed on the titanium alloy Ti-6Al-4V with accompanying analysis and fractography detailed. Numerical correlations to uniaxial fatigue data is also presented through the use of Finite Element Analysis.
published_date 2019-03-04T04:12:06Z
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