Abstract This study presents a broadband radar-absorbing foam-based sandwich structure (RAS) composed of a foam core, glass fiber-reinforced polymer (GFRP), and electroless nickel-plated glass fabric. The nickel-coated fiber (NCF) for electromagnetic wave absorption is prepared using electroless nickel plating on glass fabric with discussing the detailed electromagnetic wave absorption mechanisms relationship between the plating thickness and the skin depth in terms of lossy dielectric properties. To design the broadband NCF RAS, transmission line theory linked with a genetic algorithm is used to optimize the absorption performance. The EM wave absorption performance of fabricated broadband NCF RAS was measured using by using a free-space measurement system operating from 5.8 GHz to 18 GHz. From the measurement and the tolerance analysis, the proposed NCF RAS works well in the designed frequency range and is very robust for the fabrication tolerance. In addition, a flatwise tensile test was performed according to ASTM C297 to check the influence between the NCF and the foam core materials in terms of interfacial behavior. It has been indicated that they have no significant effect on interfacial properties.

中文翻译：

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具有化学镀镍玻璃织物的雷达吸收泡沫基夹层复合材料

摘要 本研究提出了一种宽带吸波泡沫夹层结构 (RAS)，由泡沫芯、玻璃纤维增​​强聚合物 (GFRP) 和化学镀镍玻璃织物组成。在玻璃织物上使用化学镀镍制备用于电磁波吸收的镀镍纤维（NCF），并从损耗介电性能的角度讨论了镀层厚度与趋肤深度之间的详细电磁波吸收机制关系。为了设计宽带 NCF RAS，使用与遗传算法相关的传输线理论来优化吸收性能。使用工作频率为 5.8 GHz 至 18 GHz 的自由空间测量系统测量制造的宽带 NCF RAS 的电磁波吸收性能。从测量和公差分析，提议的 NCF RAS 在设计的频率范围内运行良好，并且在制造公差方面非常稳健。此外，根据 ASTM C297 进行平面拉伸试验，以检查 NCF 和泡沫芯材之间在界面行为方面的影响。已经表明它们对界面性质没有显着影响。