Hierarchical and multi-material conformal composite structure for microwave transmission and blast-resistance

Two types of conformal composite panels, namely single-window conformal structure (SWCS) and multi-window conformal structure (MWCS), were designed and manufactured to achieve microwave transmission and blast-resistance simultaneously. These conformal panels have characteristics of multiple-material...

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Bibliographic Details
Published in:Composites science and technology 2023-07, Vol.239, p.110063, Article 110063
Main Authors: Wang, Ben, Luo, Bailu, Yang, Yunze, Qiu, Zhenyu, Bao, Wenyi, Wang, Yongjun, Jiang, Ruiyi, Yan, Qu, Bai, Cuiping, Fan, Hualin
Format: Article
Language:English
Subjects:
Mechanical properties
Multifunctional composites
Multifunctional properties
Sandwich material
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Summary:Two types of conformal composite panels, namely single-window conformal structure (SWCS) and multi-window conformal structure (MWCS), were designed and manufactured to achieve microwave transmission and blast-resistance simultaneously. These conformal panels have characteristics of multiple-materials, co-cured hierarchical structures and smooth external surface. Adopting woven lattice sandwich structure in conformal window lets that microwave transmission exceeding 80% covers bands from 4.5 GHz to 9.7 GHz and 16.5 GHz to 18 GHz. In field explosion experiments indicate that hierarchical stiffened sandwich structure with multi-windows exhibits better blast resistance. The MWCS remains structural integrity after repeated explosions with scaled distance varying from 2.565 m/kg1/3 to 0.646 m/kg1/3. Typical damage patterns of face blackening, face hole, matrix cracking, and breakage of conformal windows were revealed. Hierarchical and multi-material conformal structure for EM transmission and blast-resistance. [Display omitted]
ISSN:0266-3538
DOI:10.1016/j.compscitech.2023.110063