TY - CHAP
T1 - Composite Defects Evaluation Using the Hybrid NDT Methods of PECT and EMAT
AU - Xie, Shejuan
AU - Tian, Mingming
AU - Pei, Cuixiang
AU - Chen, Hong En
AU - Chen, Zhenmao
AU - Takagi, Toshiyuki
N1 - Publisher Copyright:
© 2017 The authors and IOS Press. All rights reserved.
PY - 2017
Y1 - 2017
N2 - In this paper, a hybrid nondestructive testing (NDT) method combined with the pulsed eddy current testing (PECT) method and the electromagnetic acoustic transducer (EMAT) method has been proposed and validated through numerical simulations and experiments. First, a numerical code is developed for the simulation of hybrid EMAT/PECT signals. Second, based on the numerical simulation, the influences of the eddy current induced by the excitation coil and the eddy current due to the velocity effect of the ultrasonic wave are compared and analyzed. Third, several signal separation and extraction methods are proposed on the basis of the spectral analysis and filtering strategies. Finally, hybrid EMAT/PECT experiments are conducted. Based on the numerical and experimental results, the proposed hybrid PECT/EMAT NDT method is demonstrated both high detectability and high efficiency.
AB - In this paper, a hybrid nondestructive testing (NDT) method combined with the pulsed eddy current testing (PECT) method and the electromagnetic acoustic transducer (EMAT) method has been proposed and validated through numerical simulations and experiments. First, a numerical code is developed for the simulation of hybrid EMAT/PECT signals. Second, based on the numerical simulation, the influences of the eddy current induced by the excitation coil and the eddy current due to the velocity effect of the ultrasonic wave are compared and analyzed. Third, several signal separation and extraction methods are proposed on the basis of the spectral analysis and filtering strategies. Finally, hybrid EMAT/PECT experiments are conducted. Based on the numerical and experimental results, the proposed hybrid PECT/EMAT NDT method is demonstrated both high detectability and high efficiency.
KW - Composite defects
KW - EMAT
KW - Hybrid NDT method
KW - PECT
KW - Signal separation and extraction
UR - https://www.scopus.com/pages/publications/85019979058
U2 - 10.3233/978-1-61499-767-2-139
DO - 10.3233/978-1-61499-767-2-139
M3 - 章节
AN - SCOPUS:85019979058
T3 - Studies in Applied Electromagnetics and Mechanics
SP - 139
EP - 149
BT - Electromagnetic Nondestructive Evaluation (XX)
A2 - Ribeiro, Artur Lopes
A2 - Ribeiro, Artur Lopes
A2 - Ramos, Helena Geirinhas
A2 - Ramos, Helena Geirinhas
PB - IOS Press
ER -