Hall sensor array based validation of estimation of crack size in metals using magnetic dipole models


          

刊名：NDT & E International
作者：Minhhuy Le（Department of Control and Instrumentation Engineering, Graduate School of Chosun University）
Jinyi Lee（Chosun University Department of Control, Instrumentation and Robotics Engineering）
Jongwoo Jun（Research Center for Real Time NDT, Chosun University）
Jungmin Kim（Department of Control and Instrumentation Engineering, Graduate School of Chosun University）
Sangman Moh（Department of Computer Engineering, Chosun University）
Kisu Shin（Department of Weapon Systems, Korea National Defense University）
刊号：713C0009
ISSN：0963-8695
出版年：2013
年卷期：2013, vol.53
页码：18-25
总页数：8
分类号：TB4; TG115
关键词：NDE；Crack；Eddy current；Dipole model；FEM；Magnetic camera
参考中译：
语种：eng
文摘：Nondestructive evaluation (NDE) is an important methodology for quantifying cracks in engineering structures. In this paper, we propose a dipole model method (DMM) for NDE. The method is used to simulate an alternating magnetic field around a crack on a paramagnetic metal specimen and to estimate the shape and volume of the crack. This method enables faster and simpler evaluation of crack size than the traditional analytical methods. The DMM performance was verified by comparing the simulation results with the experimental results obtained using an AC-type magnetic camera.



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