ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 5

Finite Element Modeling of Magnetic Field/Defect Interactions

Hwang, JH
Teaching assistant and associate professor, Colorado State University, Fort Collins, Colo.

Lord, W
Teaching assistant and associate professor, Colorado State University, Fort Collins, Colo.

Abstract

Defect modeling and the prediction of magnetic field/defect interactions is of importance to the further refinement of electromagnetic methods of defect detection and categorization. Finite element methods are particularly suited to the analysis of field distributions within magnetic structures having complex boundary geometries and nonlinear B-H characteristics. This paper describes operational aspects of the finite element technique and shows how such methods can be applied to the analysis of electromagnetic methods of nondestructive testing, by predicting the magnetic field distribution around a rectangular slot in the surface of a circular ferromagnetic bar carrying an axial magnetisation current.

Keywords:
models, defects, magnetic fields, nondestructive tests, electromagnetic testing, finite element analysis, interactions

Paper ID: JTE10129J
DOI: 10.1520/JTE10129J
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