Wavelet-based active sensing for delamination detection in composite structures
- 15 December 2003
- journal article
- Published by IOP Publishing in Smart Materials and Structures
- Vol. 13 (1), 153-160
- https://doi.org/10.1088/0964-1726/13/1/017
Abstract
In this paper a signal processing technique is developed to detect delamination on composite structures. In particular, a wavelet-based signal processing technique is developed and combined with an active sensing system to produce a near-real-time, online monitoring system for composite structures. A layer of piezoelectric patches is used to generate an input signal with a specific wavelet waveform and to measure response signals. Then, the response signals are processed by a wavelet transform to extract damage-sensitive features from the original signals. The applicability of the proposed method to delamination identification has been demonstrated by experimental studies of a composite plate under varying temperature and boundary conditions.This publication has 12 references indexed in Scilit:
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