The University of Southampton
University of Southampton Institutional Repository

Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading

Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading
Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading
This paper investigates the applicability of the acoustic emission (AE) technique for identification of the damage onset and accumulation in SGlass/ TR30-Carbon hybrid laminates under repeated quasi-static tensile loading. The samples were made of 2 layers of unidirectional thin carbon prepreg plies which were sandwiched between 2 standard thickness Sglass prepreg plies. Analysis of the AE results shows that there are two types of events regarding energy and amplitude ranges of the AE signals. The signals with low values are found to be related to the delamination of the carbon/glass interface whereas the signals with high values are linked with the carbon layer fragmentation. There are more friction related AE signals during the unloading stage than the loading stage due to collision and rubbing between existing crack faces. Increasing the strain level increases the number of fragmentations and the AE technique is able to quantify this. It is concluded that the AE technique can be used to evaluate the number of fragmentations and can identify the damage evolution of the hybrid laminate under repeated quasi-static tensile loading.
acoustic emission, carbon/glass hybrid, delamination, fragmentation, pseudo ductility
1451-2092
238-244
Fotouhi, Mohamad
71cada36-1cae-451d-8e3a-ab040cc7551a
Suwarta, Putu
03f07d7c-4d52-42a3-820e-8b8a9be9857f
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Fotouhi, Mohamad
71cada36-1cae-451d-8e3a-ab040cc7551a
Suwarta, Putu
03f07d7c-4d52-42a3-820e-8b8a9be9857f
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Czél, Gergely
f6a95d06-75a3-4ca8-8912-098395a6eb80
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a

Fotouhi, Mohamad, Suwarta, Putu, Jalalvand, Meisam, Czél, Gergely and Wisnom, Michael R. (2018) Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading. FME Transactions, 46 (2), 238-244. (doi:10.5937/fmet1802238F).

Record type: Article

Abstract

This paper investigates the applicability of the acoustic emission (AE) technique for identification of the damage onset and accumulation in SGlass/ TR30-Carbon hybrid laminates under repeated quasi-static tensile loading. The samples were made of 2 layers of unidirectional thin carbon prepreg plies which were sandwiched between 2 standard thickness Sglass prepreg plies. Analysis of the AE results shows that there are two types of events regarding energy and amplitude ranges of the AE signals. The signals with low values are found to be related to the delamination of the carbon/glass interface whereas the signals with high values are linked with the carbon layer fragmentation. There are more friction related AE signals during the unloading stage than the loading stage due to collision and rubbing between existing crack faces. Increasing the strain level increases the number of fragmentations and the AE technique is able to quantify this. It is concluded that the AE technique can be used to evaluate the number of fragmentations and can identify the damage evolution of the hybrid laminate under repeated quasi-static tensile loading.

Full text not available from this repository.

More information

Published date: 28 February 2018
Keywords: acoustic emission, carbon/glass hybrid, delamination, fragmentation, pseudo ductility

Identifiers

Local EPrints ID: 446794
URI: http://eprints.soton.ac.uk/id/eprint/446794
ISSN: 1451-2092
PURE UUID: 3afd1872-3b1d-4eb4-8388-0813fa02d18a
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 23 Feb 2021 17:30
Last modified: 24 Feb 2021 02:58

Export record

Altmetrics

Contributors

Author: Mohamad Fotouhi
Author: Putu Suwarta
Author: Gergely Czél
Author: Michael R. Wisnom

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×