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Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading

Christopher D. Newton, Jonathan P. Jones, Adam L. Chamberlain, Martin Bache

ASME Proceedings: Ceramics, Start page: V006T02A001

Swansea University Author: Martin Bache

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DOI (Published version): 10.1115/GT2017-63045

Abstract

The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Bulk measurements of strain via extensometry or even localised strain gauging will fail to characterise such inhomo...

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Published in: ASME Proceedings: Ceramics
ISBN: 978-0-7918-5091-6
Published: Charlotte, North Carolina, USA ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition 2017
URI: https://cronfa.swan.ac.uk/Record/cronfa35635
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first_indexed 2017-09-25T18:58:00Z
last_indexed 2018-02-09T05:27:02Z
id cronfa35635
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2017-09-25T14:41:17.2062941</datestamp><bib-version>v2</bib-version><id>35635</id><entry>2017-09-25</entry><title>Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading</title><swanseaauthors><author><sid>3453423659f6bcfddcd0a716c6b0e36a</sid><firstname>Martin</firstname><surname>Bache</surname><name>Martin Bache</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2017-09-25</date><deptcode>FGSEN</deptcode><abstract>The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Bulk measurements of strain via extensometry or even localised strain gauging will fail to characterise such inhomogeneity when performing conventional mechanical testing on laboratory scaled coupons. The current research project has, therefore, applied digital image correlation (DIC) techniques to the room temperature axial assessment of a SiCf/SiC composite under static and ratchetted loading.As processed SiCf/SiC panels were subjected to detailed X-ray computed tomography (XCT) inspection prior to specimen extraction and subsequent mechanical testing. In situ DIC strain measurements were taken throughout the period of room temperature monotonic and ratchet style tensile tests. Contemporary acoustic emission (AE) signals were also recorded to indicate significant damage events and the onset of ultimate failure. Data from these separate monitoring techniques were correlated to indicate the sensitivity or otherwise to pre-existing artefacts within the as received CMC panels.</abstract><type>Conference Paper/Proceeding/Abstract</type><journal>ASME Proceedings: Ceramics</journal><paginationStart>V006T02A001</paginationStart><publisher>ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition</publisher><placeOfPublication>Charlotte, North Carolina, USA</placeOfPublication><isbnPrint>978-0-7918-5091-6</isbnPrint><keywords>Deformation , Temperature , Composite materials , Inspection , Ceramic matrix composites , Acoustic emissions , Computerized tomography , Failure , Mechanical testing , Signals</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2017</publishedYear><publishedDate>2017-12-31</publishedDate><doi>10.1115/GT2017-63045</doi><url/><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2017-09-25T14:41:17.2062941</lastEdited><Created>2017-09-25T14:39:33.8395814</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Uncategorised</level></path><authors><author><firstname>Christopher D.</firstname><surname>Newton</surname><order>1</order></author><author><firstname>Jonathan P.</firstname><surname>Jones</surname><order>2</order></author><author><firstname>Adam L.</firstname><surname>Chamberlain</surname><order>3</order></author><author><firstname>Martin</firstname><surname>Bache</surname><order>4</order></author></authors><documents/><OutputDurs/></rfc1807>
spelling 2017-09-25T14:41:17.2062941 v2 35635 2017-09-25 Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading 3453423659f6bcfddcd0a716c6b0e36a Martin Bache Martin Bache true false 2017-09-25 FGSEN The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Bulk measurements of strain via extensometry or even localised strain gauging will fail to characterise such inhomogeneity when performing conventional mechanical testing on laboratory scaled coupons. The current research project has, therefore, applied digital image correlation (DIC) techniques to the room temperature axial assessment of a SiCf/SiC composite under static and ratchetted loading.As processed SiCf/SiC panels were subjected to detailed X-ray computed tomography (XCT) inspection prior to specimen extraction and subsequent mechanical testing. In situ DIC strain measurements were taken throughout the period of room temperature monotonic and ratchet style tensile tests. Contemporary acoustic emission (AE) signals were also recorded to indicate significant damage events and the onset of ultimate failure. Data from these separate monitoring techniques were correlated to indicate the sensitivity or otherwise to pre-existing artefacts within the as received CMC panels. Conference Paper/Proceeding/Abstract ASME Proceedings: Ceramics V006T02A001 ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition Charlotte, North Carolina, USA 978-0-7918-5091-6 Deformation , Temperature , Composite materials , Inspection , Ceramic matrix composites , Acoustic emissions , Computerized tomography , Failure , Mechanical testing , Signals 31 12 2017 2017-12-31 10.1115/GT2017-63045 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2017-09-25T14:41:17.2062941 2017-09-25T14:39:33.8395814 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Christopher D. Newton 1 Jonathan P. Jones 2 Adam L. Chamberlain 3 Martin Bache 4
title Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
spellingShingle Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
Martin Bache
title_short Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
title_full Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
title_fullStr Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
title_full_unstemmed Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
title_sort Inhomogeneous Strain Distribution in SiCf/SiC Coupons Under Tensile Loading
author_id_str_mv 3453423659f6bcfddcd0a716c6b0e36a
author_id_fullname_str_mv 3453423659f6bcfddcd0a716c6b0e36a_***_Martin Bache
author Martin Bache
author2 Christopher D. Newton
Jonathan P. Jones
Adam L. Chamberlain
Martin Bache
format Conference Paper/Proceeding/Abstract
container_title ASME Proceedings: Ceramics
container_start_page V006T02A001
publishDate 2017
institution Swansea University
isbn 978-0-7918-5091-6
doi_str_mv 10.1115/GT2017-63045
publisher ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Bulk measurements of strain via extensometry or even localised strain gauging will fail to characterise such inhomogeneity when performing conventional mechanical testing on laboratory scaled coupons. The current research project has, therefore, applied digital image correlation (DIC) techniques to the room temperature axial assessment of a SiCf/SiC composite under static and ratchetted loading.As processed SiCf/SiC panels were subjected to detailed X-ray computed tomography (XCT) inspection prior to specimen extraction and subsequent mechanical testing. In situ DIC strain measurements were taken throughout the period of room temperature monotonic and ratchet style tensile tests. Contemporary acoustic emission (AE) signals were also recorded to indicate significant damage events and the onset of ultimate failure. Data from these separate monitoring techniques were correlated to indicate the sensitivity or otherwise to pre-existing artefacts within the as received CMC panels.
published_date 2017-12-31T03:44:24Z
_version_ 1763752085147353088
score 11.016235

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