Lookup NU author(s): Professor Geoff Gibson
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This study proposes a novel approach to determine the fibre volume fraction in composites using vibration based non-destructive technique with a neural network. Currently, the volume fraction of a glass fibre/matrix based composite material is assessed using destructive techniques. Instead of changing or destroying the structure, a new non-destructive approach based on vibration analysis is proposed. Complete experimental protocols were developed to capture the vibration pattern. An auto-regressive model was developed as a feature extraction tool to classify the fibre volume fractions and as a pole tracking algorithm. The classification performances were within the range of 90-98%. For NDT method to be efficient, the classification results were then compared with destructive burn-out technique. The results of non-destructive test showed good agreement with those obtained through destructive test suggesting that the proposed method is an alternative to ASTM D2584-11 for determining the volume fraction of a glass fibre/matrix composite. (C) 2016 Elsevier Ltd. All rights reserved.
Author(s): Farhana NIE, Majid MSA, Paulraj MP, Ahmadhilmi E, Fakhzan MN, Gibson AG
Publication type: Article
Publication status: Published
Journal: Composite Structures
Print publication date: 01/06/2016
Online publication date: 27/02/2016
Acceptance date: 01/01/1900
ISSN (print): 0263-8223
ISSN (electronic): 1879-1085
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