4 / 2020-03-25 11:58:46

Electromagnetic Modeling of The Fiber-Reinforced Laminated Composites

Electromagnetic properties,Laminated composite material,Finite-difference Time-domain,Numerical Green's function

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Non-destructive testing of the composite materials based on Electromagnetics requires a modeling of the composite materials to build the Green's function in both 2D and 3D. A FDTD-based method is applied in this article to study the electromagnetic properties of fiber-reinforced laminated composite with the fibers in the structure are organized in a periodic way. The laminate is consist of multiple layers with the fibers in each layer periodically arranged and bind together by the matrix which can be epoxy or ceramics etc. A number of fibers are embedded into one periodic cell and bind together to form a fiber bundle for wave absorption enhancement. The electromagnetic wave scattering properties of this composite are studied in detail with different structural and electromagnetic parameters. The scattering of the structure to line source in 2D and point source in 3D is also investigated. The reflection and transmission are obtained with a short Gaussian pulse and a Fourier transformation applied. Various numerical results are presented with detailed discussions.