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.
|Title of host publication||Composites Technologies For 2020|
|Publisher||Woodhead Publishing Limited|
|Number of pages||6|
|Publication status||Published - 1 Jan 2004|
ASJC Scopus subject areas
- Materials Science(all)