Title :
A matrix surface impedance formulation for the analysis of EM-interactions to finite laminated composite slabs
Author_Institution :
Dept. of Electr. Eng., Rome Univ., Italy
Abstract :
This paper proposes a surface impedance boundary condition formulation for the analysis of electromagnetic interactions to laminated composite structures realized in carbon fiber or graphite/epoxy. The transmission matrix of a multilayer composite panel, relating the tangential components of the electric and magetic fields at the input and output planes, is deduced by considering also the anisotropy of the material. Therefore, the obtained surface impedance of the composite slab is expressed in matrix form. The proposed formulation is implemented in a finite-difference scheme. Applications are carried out in order to investigate the influence of different parameters, such as panel composition and fiber orientation
Keywords :
carbon fibre reinforced composites; electric fields; electric impedance; electromagnetic wave absorption; electromagnetic wave propagation; electromagnetic wave transmission; finite difference methods; laminates; magnetic fields; C; EM interactions analysis; carbon fiber; electric fields; fiber orientation; finite difference method; finite laminated composite slabs; graphite/epoxy; input plane; laminated composite structures; magetic fields; material anisotropy; matrix surface impedance formulation; multilayer composite panel; output plane; panel composition; surface impedance boundary condition; tangential components; transmission matrix; Aerospace materials; Anisotropic magnetoresistance; Boundary conditions; Composite materials; Conducting materials; Conductivity; Dielectric materials; Magnetic materials; Slabs; Surface impedance;
Conference_Titel :
Electromagnetic Compatibility, 1996. Symposium Record. IEEE 1996 International Symposium on
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3207-5
DOI :
10.1109/ISEMC.1996.561222
