Title :
Anisotropy of composite materials with inclusion with orientation preference
Author :
Qing, Anyong ; Xu, Xin ; Gan, Yeow Beng
Author_Institution :
Temasek Labs., Nat. Univ. of Singapore, Singapore
Abstract :
In this paper, the quasicrystalline model and the differential evolution strategy are applied to analyze the effective electromagnetic properties of composite materials with aligned nonspherical inclusions. The relationship between the effective wave number, volume concentration, direction of wave propagation vector, and aspect ratio of the inclusion particle are numerically studied. It is found that composite materials with small inclusion particles behave like uniaxial material. In addition, we observed general effective anisotropy in composite materials with larger inclusion particles.
Keywords :
anisotropic media; composite materials; electromagnetic wave propagation; inclusions; matrix algebra; quasicrystals; DES; T-matrix method; aligned nonspherical inclusion; anisotropy; aspect ratio; composite material; differential evolution strategy; electromagnetic properties; orientation preference; quasicrystalline model; volume concentration; wave number; wave propagation vector; Anisotropic magnetoresistance; Composite materials; Conducting materials; Electromagnetic analysis; Electromagnetic modeling; Electromagnetic propagation; Electromagnetic scattering; Gallium nitride; Particle scattering; Wave functions;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.841316
