Detection of fibre fracture and ply fragmentation in thin-ply UD carbon/glass hybrid laminates using acoustic emission
Detection of fibre fracture and ply fragmentation in thin-ply UD carbon/glass hybrid laminates using acoustic emission
This paper investigates the link between acoustic emission (AE) events and the corresponding damage modes in thin-ply UD carbon/glass hybrid laminates under tensile loading. A novel configuration was investigated which has not previously been studied by AE, where the laminates were fabricated by embedding thin carbon plies between standard thickness translucent glass plies to produce progressive fragmentation of the carbon layer and delamination of the carbon/glass interface. A criterion based on amplitude and energy of the AE event values was established to identify the fragmentation failure mode. Since the glass layer was translucent, it was possible to quantitatively correlate the observed fragmentation during the tests and the AE events with high amplitude and energy values. This new method can be used as a simple and advanced tool to identify fibre fracture as well as estimate the number and sequence of damage events that are not visible e.g. in hybrid laminates with thick or non-transparent layers as well as when the damage is too small to be visually detected.
A. hybrid, A. laminates, B. fragmentation, D. acoustic emission
66-76
Fotouhi, Mohamad
71cada36-1cae-451d-8e3a-ab040cc7551a
Suwarta, Putu
03f07d7c-4d52-42a3-820e-8b8a9be9857f
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czel, Gergely
a1f54093-b1d0-45c2-9468-1761f8899c2a
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
31 July 2016
Fotouhi, Mohamad
71cada36-1cae-451d-8e3a-ab040cc7551a
Suwarta, Putu
03f07d7c-4d52-42a3-820e-8b8a9be9857f
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czel, Gergely
a1f54093-b1d0-45c2-9468-1761f8899c2a
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Fotouhi, Mohamad, Suwarta, Putu, Jalalvand, Meisam, Czel, Gergely and Wisnom, Michael R.
(2016)
Detection of fibre fracture and ply fragmentation in thin-ply UD carbon/glass hybrid laminates using acoustic emission.
Composites Part A: Applied Science and Manufacturing, 86, .
(doi:10.1016/j.compositesa.2016.04.003).
Abstract
This paper investigates the link between acoustic emission (AE) events and the corresponding damage modes in thin-ply UD carbon/glass hybrid laminates under tensile loading. A novel configuration was investigated which has not previously been studied by AE, where the laminates were fabricated by embedding thin carbon plies between standard thickness translucent glass plies to produce progressive fragmentation of the carbon layer and delamination of the carbon/glass interface. A criterion based on amplitude and energy of the AE event values was established to identify the fragmentation failure mode. Since the glass layer was translucent, it was possible to quantitatively correlate the observed fragmentation during the tests and the AE events with high amplitude and energy values. This new method can be used as a simple and advanced tool to identify fibre fracture as well as estimate the number and sequence of damage events that are not visible e.g. in hybrid laminates with thick or non-transparent layers as well as when the damage is too small to be visually detected.
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More information
e-pub ahead of print date: 3 April 2016
Published date: 31 July 2016
Keywords:
A. hybrid, A. laminates, B. fragmentation, D. acoustic emission
Identifiers
Local EPrints ID: 446771
URI: http://eprints.soton.ac.uk/id/eprint/446771
ISSN: 1359-835X
PURE UUID: d591ce1a-e093-4567-89e9-a8b2204217c0
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Date deposited: 22 Feb 2021 17:31
Last modified: 17 Mar 2024 04:02
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Contributors
Author:
Mohamad Fotouhi
Author:
Putu Suwarta
Author:
Gergely Czel
Author:
Michael R. Wisnom
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