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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제22권 제6호
- 발행연도
- 2021.12
- 수록면
- 794 - 802 (9page)
- DOI
- https://doi.org/10.1007/s42341-021-00299-z
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Natural fibre based sandwich composite wave absorbing structures were prepared and characterized for stealth and radome applications. The principal aim of this research was to develop a novel sandwich radar wave absorbing composite structure and evaluating their wave transmission and flexural properties. Fibres such as wool, silk, E-glass, aramid and wave absorbing foams like balsa wood, PVC and PMI were used for making wave absorbing sandwich composites. The composites were prepared using autoclave vacuum bag degassing method followed by post curing at 120 °C. The radar wave transmission characteristics were investigated using stealth radomes by partially replacing the traditional E-glass and aramid fi bre structure with a frequency selective surface (FSS) with standard parameters. The free space measurement technique was used to examine the radar wave transmission characteristics in the X-band frequency range (8.2?12.4 GHz). Three point bending test also performed to identify the fl exural strength of sandwich composite setup to ensure the bending rigidity. A highest wave transmission of 87.7% at bandwidth 0.83 GHz in ? 1 dB with flexural strength of 44.2 MPa was observed for sandwich composite type 3c, which contains aramid/epoxy composite + balsa wood + silk/epoxy structure. The SEM micrographs showed highly reacted and toughness improved matrix phase for type 3c composite sandwich.
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참고문헌 (30)
참고문헌 신청
G. A. Rao / 2002 / Integrated review of stealth technology and its role in airpower / Aeronaut. J 106:629~641
S. P. Mahulikar / 2007 / Infrared signature studies of aerospace vehicles / Prog. Aerosp. Sci 43:218~245
W. S. Chin / 2006 / Binary mixture rule for predicting the dielectric properties of unidirectional E-glass/epoxy composite / Sci. Direct – Elsevier Compos. Struct 74:153~162
P. C. Kim / 2009 / Composite sandwich constructions for absorbing the electromagnetic waves / Sci. Direct – Elsevier Compos. Struct 87:161~167
P. C. Kim / 2006 / EM characteristics of the RAS composed of E-glass/epoxy composite and single dipole FSS element / Sci. Direct – Elsevier Compos. Struct 75:601~609
S. P. Mahulikar / 2007 / Infrared signature studies of aerospace vehicles / Prog. Aerosp. Sci 43:218~245
W. S. Chin / 2006 / Binary mixture rule for predicting the dielectric properties of unidirectional E-glass/epoxy composite / Sci. Direct – Elsevier Compos. Struct 74:153~162
P. C. Kim / 2009 / Composite sandwich constructions for absorbing the electromagnetic waves / Sci. Direct – Elsevier Compos. Struct 87:161~167
P. C. Kim / 2006 / EM characteristics of the RAS composed of E-glass/epoxy composite and single dipole FSS element / Sci. Direct – Elsevier Compos. Struct 75:601~609
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