Paper number 534

MODELING OF THE ELECTROMAGNETIC BEHAVIOUR OF MULTI-LAYER CARBON/EPOXY MATERIALS.

D. Martinez1, M. Lemistre1, M. Lambert2 and D. Lesselier2

1Structures and Damage Mechanics Department,
Office National d'Etudes et de Recherches Aérospatiales
BP 72-29, Avenue de la division Leclerc, 92 322 Chatillon Cedex - France
http://www.onera.fr
2Laboratoire des Signaux et Systèmes (CNRS - SUPELEC)
Département de Recherche en Electromagnétisme
Plateau de Moulon 91 192 Gif-sur-Yvette Cedex - France
http ://www.supelec.fr/lss

Summary An analytical formulation is presented for the computation of scattering and transmission by a non magnetic carbon-epoxy composite material, which is characterized by a complex permittivity. This method employs a first-order state-vector differential equation representation of Maxwell's equations. The solution is given in terms of a 4x4 to transition matrix relating the tangential field components at the input and output planes of the anisotropic region. The complete diffraction problem is solved by combining impedance boundary conditions at these interfaces with the transition matrix relationship.
Keywords carbon fiber reinforced composites, carbon-epoxy, electromagnetics, anisotropy, 4x4-transition matrix.

Theme : Mechanical and Physical Properties ; Physical Properties

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