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Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission

Saeedifar, Milad; Fotouhi, Mohamad; Ahmadi Najafabadi, Mehdi; Hosseini Toudeshky, Hossein; Minak, Giangiacomo

Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission Thumbnail


Authors

Milad Saeedifar

Mehdi Ahmadi Najafabadi

Hossein Hosseini Toudeshky

Giangiacomo Minak



Abstract

© 2015 Elsevier Ltd. All rights reserved. The main objective of this study is to determine the crack tip position during propagation of mode I delamination and also to evaluate interlaminar fracture toughness (GIC) in glass/epoxy composite specimens. The crack tip location was identified using two methods: a) localization of the AE signal source and b) the cumulative AE energy. Interlaminar fracture toughness of the specimens was also determined using the ASTM standard methods and the AE-based methods. The AE-based methods results were in a close agreement with the results of ASTM standard. It was found that the novel AE-based methods are more applicable than conventional methods for characterization of the delamination.

Citation

Saeedifar, M., Fotouhi, M., Ahmadi Najafabadi, M., Hosseini Toudeshky, H., & Minak, G. (2016). Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission. Composites Part B: Engineering, 85, 113-122. https://doi.org/10.1016/j.compositesb.2015.09.037

Journal Article Type Article
Acceptance Date Sep 19, 2015
Online Publication Date Oct 2, 2015
Publication Date Feb 1, 2016
Deposit Date Oct 16, 2017
Publicly Available Date Mar 29, 2024
Journal Composites Part B: Engineering
Print ISSN 1359-8368
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 85
Pages 113-122
DOI https://doi.org/10.1016/j.compositesb.2015.09.037
Keywords glass fibres, delamination, fracture toughness, acoustic emission
Public URL https://uwe-repository.worktribe.com/output/913919
Publisher URL http://dx.doi.org/10.1016/j.compositesb.2015.09.037

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