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Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons / Martin, Bache

ASME Proceedings: Ceramics, Start page: V006T02A004

Swansea University Author: Martin, Bache

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DOI (Published version): 10.1115/GT2018-75791

Abstract

The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Sophisticated mechanical characterisation is vital in support of a fundamental understanding of deformation in cera...

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Published in: ASME Proceedings: Ceramics
ISBN: 978-0-7918-5112-8
Published: Oslo, Norway ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition 2018
URI: https://cronfa.swan.ac.uk/Record/cronfa44791
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first_indexed 2018-10-08T15:00:24Z
last_indexed 2018-11-26T14:20:25Z
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spelling 2018-11-26T11:02:48.2817705 v2 44791 2018-10-08 Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons 3453423659f6bcfddcd0a716c6b0e36a 0000-0001-6932-7560 Martin Bache Martin Bache true false 2018-10-08 EEN The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Sophisticated mechanical characterisation is vital in support of a fundamental understanding of deformation in ceramic matrix composites. On the component scale, “damage tolerant” design and lifing philosophies depend upon laboratory assessments of macro-scale specimens, incorporating typical fibre architectures and matrix under representative stress-strain states.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), electrical resistance monitoring and acoustic emission techniques to the room and high temperature assessment of a SiCf/SiC composite under axial fatigue loading.Data from these separate monitoring techniques plus ancillary use of X-Ray computed tomography and optical inspection were correlated to monitor the onset and progression of damage during cyclic loading. Conference Paper/Proceeding/Abstract ASME Proceedings: Ceramics V006T02A004 ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition Oslo, Norway 978-0-7918-5112-8 Mechanical testing, Damage 31 12 2018 2018-12-31 10.1115/GT2018-75791 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2018-11-26T11:02:48.2817705 2018-10-08T11:40:07.9507822 College of Engineering Engineering Christopher D. Newton 1 J. Paul Jones 2 Louise Gale 3 Martin Bache 0000-0001-6932-7560 4
title Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
spellingShingle Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
Martin, Bache
title_short Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
title_full Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
title_fullStr Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
title_full_unstemmed Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
title_sort Detection of Strain and Damage Distribution in SiCf/SiC Mechanical Test Coupons
author_id_str_mv 3453423659f6bcfddcd0a716c6b0e36a
author_id_fullname_str_mv 3453423659f6bcfddcd0a716c6b0e36a_***_Martin, Bache
author Martin, Bache
format Conference Paper/Proceeding/Abstract
container_title ASME Proceedings: Ceramics
container_start_page V006T02A004
publishDate 2018
institution Swansea University
isbn 978-0-7918-5112-8
doi_str_mv 10.1115/GT2018-75791
publisher ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition
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
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description The complex structural architecture and inherent processing artefacts within ceramic matrix composites combine to induce inhomogeneous deformation and damage prior to ultimate failure. Sophisticated mechanical characterisation is vital in support of a fundamental understanding of deformation in ceramic matrix composites. On the component scale, “damage tolerant” design and lifing philosophies depend upon laboratory assessments of macro-scale specimens, incorporating typical fibre architectures and matrix under representative stress-strain states.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), electrical resistance monitoring and acoustic emission techniques to the room and high temperature assessment of a SiCf/SiC composite under axial fatigue loading.Data from these separate monitoring techniques plus ancillary use of X-Ray computed tomography and optical inspection were correlated to monitor the onset and progression of damage during cyclic loading.
published_date 2018-12-31T03:59:26Z
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