Title :
An Extended Iterative Finite Element Model for Simulating Eddy Current Testing of Aircraft Skin Structure
Author :
Huang, Lin ; He, Rongguang ; Zeng, Zhiwei
Author_Institution :
Dept. of Aeronaut., Xiamen Univ., Xiamen, China
fDate :
7/1/2012 12:00:00 AM
Abstract :
This paper presents a new finite element (FE) model for three-dimensional simulation of eddy current testing of aircraft skin structure. More specifically, scanning of ferrite-core probe over aluminum plates riveted by steel fasteners is simulated. The model uses different FE meshes to discretize the ferrite core, the aluminum plates, and the fasteners. The coil is not meshed. The reduced magnetic vector potential generated by the induced currents and/or magnetization in each domain is calculated and updated by an iterative procedure. Re-meshing due to changing probe position in conventional models is avoided. Efficiency of the model is demonstrated.
Keywords :
aerospace components; aluminium; coils; eddy current testing; fasteners; ferrites; finite element analysis; iterative methods; magnetisation; plates (structures); steel; Al; Eddy current testing; FE meshes; aircraft skin structure; aluminum plates; coil; extended iterative finite element model; ferrite core; ferrite-core probe; induced currents; iterative procedure; magnetization; reduced magnetic vector potential; remeshing; steel fasteners; three-dimensional simulation; Atmospheric modeling; Coils; Computational modeling; Fasteners; Finite element methods; Probes; Steel; Aircraft skin structure; eddy current testing; extended iterative model; finite element method;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2186311
