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

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

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Abstract

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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Fotouhi, Dr Mohammad
Authors: Saeedifar, M., Fotouhi, M., Ahmadi Najafabadi, M., Hosseini Toudeshky, H., and Minak, G.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Composites Part B: Engineering
Publisher:Elsevier
ISSN:1359-8368
ISSN (Online):1879-1069
Published Online:02 October 2015

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