Open AccessDesign of Stealth Bulletproof Material Based on Sub-Wavelength Absorbing Structure
Author(s) -
Han Zhang,
Zekui Zhang,
Baoyi Li
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/774/1/012097
Subject(s) - materials science , wavelength , absorption (acoustics) , ballistic impact , optics , optoelectronics , composite material , physics , composite number
When stealth bulletproof materials achieve performance through simple superposition of layers and layers, there is a problem that the weigh is heavier, and the coating or patch is easy to fall off, and the absorption rate is lower. In order to reduce the weight, broaden the frequency band, and increase the absorption rate, functional integrated design method base on absorbing sub-wavelength structure is adopted. According to the design principle of the absorbing sub-wavelength structure, a lightweight ballistic material is used as its dielectric substrate. Microstructure graphics are designed on the bulletproof medium. With the fusion of stealth and ballistic performance, the design of a new wide-band stealth ballistic material was completed. Test results show that the absorbing sub-wavelength structure based on the lightweight bulletproof material has an absorption rate of more than 90% in a wide frequency band of 4GH to 18GHz and 27GHz to 40 GHz. which does not affect the ballistic performance of the ballistic material itself, and reduces the stealth material layer in the stealth ballistic material. The effect of reducing thickness and weight loss is achieved. The feasibility of this method is verified, which is of great significance for improving the combat capability of new functional vehicles.