Electromagnetic Wave Dual-Polarized Absorption and Flexural Performance Design of Composite Laminates Based on Carbon Fibers

JI Zhengjiang; CHENG Linhao; ZHENG Xitao; YAN Leilei

doi:10.21656/1000-0887.450102

Volume 45 Issue 8

Aug. 2024

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Article Navigation > Applied Mathematics and Mechanics > 2024 > 45(8): 1096-1105

JI Zhengjiang, CHENG Linhao, ZHENG Xitao, YAN Leilei. Electromagnetic Wave Dual-Polarized Absorption and Flexural Performance Design of Composite Laminates Based on Carbon Fibers[J]. Applied Mathematics and Mechanics, 2024, 45(8): 1096-1105. doi: 10.21656/1000-0887.450102

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Electromagnetic Wave Dual-Polarized Absorption and Flexural Performance Design of Composite Laminates Based on Carbon Fibers

doi: 10.21656/1000-0887.450102

School of Aeronautics, Northwestern Polytechnical University,Xi’an 710072,P.R.China

Funds:

The Natural Science Foundation of China(12372141)

Received Date: 2024-04-15
Rev Recd Date: 2024-06-06

Available Online: 2024-09-06

Abstract

Abstract

To address the challenge of balancing load-bearing and electromagnetic (EM) wave absorption properties in aircraft composite skin, the outstanding mechanical and electrical characteristics of carbon fiber (CF) prepregs were utilized to construct a carbon fiber dual-polarized absorbing laminated structure (CFDALS). The bidirectional CF arrays were introduced into the glass fiber (GF) laminated structure, to endow the laminated structure with dual-polarized EM wave absorption performances. Additionally, the excellent load-bearing capacity of the CF reflector was used to enhance the mechanical properties. Simulation results indicate that, the CFDALS achieves an average absorptivity over 90% within the 8~18 GHz frequency band at incident angles of 0°~45°, and within the 5~18 GHz band at incident angles of 0°~60° for TE and TM polarized EM waves, respectively. The 3-point bending simulation results show that, the CFDALS exhibits higher specific flexural strengths and stiffnesses along 2 directions of the CF arrays while achieving dual-polarized EM wave absorption. Incorporation of bidirectionally arranged CF prepregs into GF prepregs enhances the dual-polarized EM wave absorption performance and the bidirectional flexural performance of the CFDALS simultaneously. The work provides a novel solution for the EM wave absorbing and load-bearing integrated design for aircraft composite skin applications.
- carbon fiber prepreg,
- laminated structure,
- dual-polarized,
- electromagnetic wave absorption,
- mechanical property

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References(25)

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