TY - CHAP
T1 - Characterization of multiple cracks from eddy current testing signals by a template matching method and inverse analysis
AU - Nagaya, Yoshiaki
AU - Takagi, Toshiyuki
AU - Uchimoto, Tetsuya
AU - Huang, Haoyu
N1 - Funding Information:
This study was supported in part by a Grant-in-Aid for Specially Promoted Research (11CE2003) by the Ministry of Education, Culture, Sports, Science and Technology. The authors acknowledge Mr. Y. Harada and Mr. J. Shimone of Nuclear Engineering Ltd. for providing us with the testpiece.
PY - 2003/11
Y1 - 2003/11
N2 - This chapter describes a method for identifying the number and positions of cracks and reconstructing of the crack shape. Using the eddy current testing signal obtained by 2D scanning as a picture image, a template matching method, with the help of a genetic algorithm is applied to predict the number and positions of the cracks. The present method employs the scaling technique of a signal profile with respect to crack length, which is verified by numerical simulation. The number and positions of the cracks are sufficiently well predicted. Crack shape reconstructions from the predicted data are achieved with a satisfactory degree of accuracy.
AB - This chapter describes a method for identifying the number and positions of cracks and reconstructing of the crack shape. Using the eddy current testing signal obtained by 2D scanning as a picture image, a template matching method, with the help of a genetic algorithm is applied to predict the number and positions of the cracks. The present method employs the scaling technique of a signal profile with respect to crack length, which is verified by numerical simulation. The number and positions of the cracks are sufficiently well predicted. Crack shape reconstructions from the predicted data are achieved with a satisfactory degree of accuracy.
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U2 - 10.1016/B978-008044268-6/50024-7
DO - 10.1016/B978-008044268-6/50024-7
M3 - Chapter
AN - SCOPUS:84902406019
SN - 9780080442686
SP - 185
EP - 194
BT - Inverse Problems in Engineering Mechanics IV
PB - Elsevier Ltd
ER -