Shape recovery of natural crack using evolutionary programming related to eddy current testing

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Kojima, Fumio^{a; *} | Kubota, Naoyuki^b | Kobayashi, Futoshi^a | Takagi, Toshiyuki^c

Affiliations: [a] Graduate School of Science and Technology, Kobe University 1-1, Rokkodai, Nada-ku, Kobe 657-8501, Japan | [b] Department of Human and Artificial Intelligent System, Fukui University 3-9-1, Bunkyo, Fukui 910-8507, Japan | [c] Institute of Fluid Science, Tohoku University 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan

Correspondence: [*] Corresponding author: Fumio Kojima, Tel.: +81 78 803 6493; Fax: +81 78 803 6493; E-mail: [email protected]

Abstract: This paper is concerned with a shape recovery of natural cracks in steam generator tubes of the PWR nuclear power plant. A three dimensional forward model is developed for analyzing accurate probe response evaluation in eddy current testing. Using the evolutionary programming, an efficient inverse scheme is proposed for recovering natural cracks. The proposed algorithm is tested for stress corrosion cracks of the steam generator tube samples.

DOI: 10.3233/JAE-2002-458

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 15, no. 1-4, pp. 243-247, 2002