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Characterisation of fatigue damage in composites using an Acoustic Emission Parameter Correction Technique

Al-Jumaili, Safaa Kh, Eaton, Mark J. ORCID: https://orcid.org/0000-0002-7388-6522, Holford, Karen M. ORCID: https://orcid.org/0000-0002-3239-4660, Pearson, Matthew R. ORCID: https://orcid.org/0000-0003-1625-3611, Crivelli, Davide ORCID: https://orcid.org/0000-0002-1573-5726 and Pullin, Rhys ORCID: https://orcid.org/0000-0002-2853-6099 2018. Characterisation of fatigue damage in composites using an Acoustic Emission Parameter Correction Technique. Composites Part B: Engineering 151 , pp. 237-244. 10.1016/j.compositesb.2018.06.020

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Abstract

In industrial applications of composite materials, accurate characterisation of damage is vital. Acoustic Emission (AE) can be utilised to achieve this, however, in large-scale complex geometry components, traditional AE approaches have limitations. In this study a large carbon fibre specimen was used to generate different damage mechanisms under fatigue loading. The Delta T Mapping technique was used to locate damage and signal features were corrected using the Parameter Correction Technique (PCT). A comparison between results obtained using traditional signal features and those obtained using PCT is given. The results are validated using C-scanning and computed tomography. Matrix cracking and delamination were successfully identified using the PCT approach and improved location accuracy was achieved.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 1359-8368
Date of First Compliant Deposit: 21 June 2018
Date of Acceptance: 16 June 2018
Last Modified: 11 Nov 2022 01:58
URI: https://orca.cardiff.ac.uk/id/eprint/112670

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