Title :
Three dimensional defect reconstruction from magnetic images using virus-evolutionary genetic algorithm
Author :
Kojima, F. ; Ikai, Y. ; Nishimizu, A. ; Koike, M. ; Matsui, T.
Author_Institution :
Kobe Univ., Japan
Abstract :
This paper is concerned with three dimensional defect reconstruction from magnetic images. Magnetic measurements arising in eddy current testing are used for detecting and characterizing defect shape. Natural cracks are divided into a couple of segments. Defect is then characterized by its width, length, and depth of each segment. A computational method using virus-evolutionary genetic algorithm (VEGA) is proposed for sizing such segments. Successful computational experiments are summarized in the presentation.
Keywords :
crack detection; eddy current testing; genetic algorithms; inverse problems; power plants; preventive maintenance; eddy current testing; inverse problem; magnetic image; magnetic measurement; nondestructive test; three dimensional defect reconstruction; virus-evolutionary genetic algorithm;
Conference_Titel :
SICE 2004 Annual Conference
Conference_Location :
Sapporo
Print_ISBN :
4-907764-22-7