Effects of Anisotropic Properties of Composite Skins on Electromagnetic Wave Propagation in the Foam Core Sandwich Structures

폼 코어 샌드위치 구조물에서 복합재료 스킨의 이방성 특성이 전자기파 투과 특성에 미치는 영향에 관한 연구

In this study, efforts were made to understand the propagation of electromagnetic wave through the foam core sandwich structure by the analytical model. Foam core sandwich structure is composed of glass/epoxy composite skins and foam core. Transmittance and reflectance of the arbitrary linearly polarized incident TEM waves through the unidirectional composites, foam and foam core sandwich structures were determined as functions of thickness, fiber orientation of composites, incident angle and polarization angle by the analytical model. From the results of the analysis, the general tendency of transmittance and reflectance of electromagnetic wave through composites, foam and foam core sandwich structures was obtained.