Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 36, Issue 4, Pages 1193-1196Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/20.877653
Keywords
inverse problem; nonhomogeneous materials; equivalent properties; induction heating
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In this paper, the asymptotic development method is used to study the electromagnetic and thermal behavior of non homogeneous materials. The method, widely used in high frequency applications, is adapted to an induction heating system of partially conducting composites. The asymptotic method, based on the spatial filtering of the electromagnetic field, is applied to study the composite materials with periodic structure. The model is valid when the size of the elementary cell is little compared with the dimensions of the system. For the large cells, the model gives some average value of field. A local solution is then used to improve the homogenized field. The conditions of using the model for nonperiodic structures are also discussed.
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