Quantitative nondestructive evaluation in composites beam using piezoelectrics

Young Geun Choi; Zhongqing Su; Zuo Rong Chen; Lin Ye

Quantitative nondestructive evaluation in composites beam using piezoelectrics

Young Geun Choi, Zhongqing Su, Zuo Rong Chen, Lin Ye

Research output: Chapter in book / Conference proceeding › Chapter in an edited book (as author) › Academic research › peer-review

Abstract

A quantitative prediction method for initial crack length in a carbon fibre/epoxy (CF/EP) composites beam using active piezoelectric transducers was established in this study. Wavelet Transform (WT)-based signal processing and identification teclmique in time-frequency domain was developed to facilitate the determination of damage presence and severity. Dynamic response of a CFIEP composites beam containing a continuously expanding crack, coupled with a pair of active piezoelectric disks, was examined under a narrowband excitation, and then applied with the proposed signal processing technique.

Original language	English
Title of host publication	Composites Technologies For 2020
Publisher	Woodhead Publishing Limited
Pages	1032-1037
Number of pages	6
ISBN (Print)	9781855738317
Publication status	Published - 1 Jan 2004
Externally published	Yes

ASJC Scopus subject areas

General Materials Science

Cite this

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abstract = "A quantitative prediction method for initial crack length in a carbon fibre/epoxy (CF/EP) composites beam using active piezoelectric transducers was established in this study. Wavelet Transform (WT)-based signal processing and identification teclmique in time-frequency domain was developed to facilitate the determination of damage presence and severity. Dynamic response of a CFIEP composites beam containing a continuously expanding crack, coupled with a pair of active piezoelectric disks, was examined under a narrowband excitation, and then applied with the proposed signal processing technique.",

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AU - Choi, Young Geun

AU - Su, Zhongqing

AU - Chen, Zuo Rong

AU - Ye, Lin

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Y1 - 2004/1/1

N2 - A quantitative prediction method for initial crack length in a carbon fibre/epoxy (CF/EP) composites beam using active piezoelectric transducers was established in this study. Wavelet Transform (WT)-based signal processing and identification teclmique in time-frequency domain was developed to facilitate the determination of damage presence and severity. Dynamic response of a CFIEP composites beam containing a continuously expanding crack, coupled with a pair of active piezoelectric disks, was examined under a narrowband excitation, and then applied with the proposed signal processing technique.

AB - A quantitative prediction method for initial crack length in a carbon fibre/epoxy (CF/EP) composites beam using active piezoelectric transducers was established in this study. Wavelet Transform (WT)-based signal processing and identification teclmique in time-frequency domain was developed to facilitate the determination of damage presence and severity. Dynamic response of a CFIEP composites beam containing a continuously expanding crack, coupled with a pair of active piezoelectric disks, was examined under a narrowband excitation, and then applied with the proposed signal processing technique.

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M3 - Chapter in an edited book (as author)

SN - 9781855738317

SP - 1032

EP - 1037

BT - Composites Technologies For 2020

PB - Woodhead Publishing Limited

ER -

Quantitative nondestructive evaluation in composites beam using piezoelectrics

Abstract

ASJC Scopus subject areas

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