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Type: Journal article
Title: Detection of cracks using piezoelectric wafer active sensors
Author: Blazewicz, A.
Kotooussov, A.
Wornle, F.
Citation: Key Engineering Materials, 2005; 293-294:201-206
Publisher: Trans Tech Publications
Issue Date: 2005
ISSN: 1013-9826
Statement of
Antoni Blazewicz, Andrei Kotousov and Frank Wornle
Abstract: Abstract. The capability of piezoelectric wafer active sensors to identifying cracks which are common to metallic structural elements subjected to fatigue loading were explored. A number of laboratory tests were performed to investigate Lamb wave transmission and reception characteristics as well as the sensitivity of the transmitted and reflected signals to the presence of a through-the-thickness crack of various length and orientation in a thin plate. Based on the laboratory tests an optimum strategy for crack detection with the pulse-echo method was investigated. The method can be used for large areas scanning with a small amount of sensors and is favoured for embedded and leave-in-place sensor applications.
Keywords: Crack detection; Lamb waves; echo-pulse method; sensor measurement strategies; piezoelectric wafer sensors
Description: © (2005) Trans Tech Publications
RMID: 0020050828
DOI: 10.4028/
Appears in Collections:Mechanical Engineering publications
Materials Research Group publications

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