Design and Properties of Sandwich Structure for Ballistic-resistant Radome

Abstract

Abstract: A sandwich structure with high transmissivity for ballistic-resistant radome was designed to prevent a radar from impact produced by short distance explosion of anti-radiation weapon. Ultra-high molecular weight polyethylene (UHMWPE) laminate was determined as anti-penetration layer of sandwich structure by testing the ballistic penetration property of UHMWPE laminates with different thicknesses. The structure parameters were obtained by electromagnetic optimization, and the electromagnetic performance of designed sandwich was theoretically analyzed. Ballistic and electromagnetic test results show that the designed sandwich structure resists fragment impact produced by the explosion of a certain anti-radiation missile at 15m, with minimum transmissivity (power transmission coefficient) of 97.8% and average value of 98.6% at S band. The design method for sandwich structure of ballistic-resistant radome has been proven to be reliable by theoretical and experimental results.

Key words: solid mechanics, ballistic resistance, radome, sandwich structure, ultra-high molecular weight polyethylene

CLC Number:

CHEN Xin, ZHU Xi, ZHANG Li-jun, WANG Xiao-qiang. Design and Properties of Sandwich Structure for Ballistic-resistant Radome[J]. Acta Armamentarii, 2010, 31(10): 1298-1302.

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