This paper numerically characterizes the effects of normal, blunt impact damage on unidirectional carbon-fiber reinforced polymer (CFRP) circuit analog absorbers (CAA). Single-layer CFRP CAAs are fabricated using a wet-layup technique and are then subjected to controlled impact scenarios. A free-space measurement system is implemented to track and quantify changes to the complex permittivity and sheet impedance of the CFRP and absorption capabilities of the CAA. Accuracy and repeatability analysis for both the damaging apparatus and the material characterization interface are presented. Alternative simulation methods and damage quantification techniques for impact damage in CFRP CAAs are developed.

本文从数值上描述了正常的，钝的冲击损伤对单向碳纤维增强聚合物（CFRP）电路模拟吸收器（CAA）的影响。单层CFRP CAA使用湿法叠层技术制造，然后经受可控的冲击方案。实现了自由空间测量系统，以跟踪和量化CFRP的复介电常数和薄层阻抗以及CAA吸收能力的变化。提出了针对损坏设备和材料表征界面的准确性和可重复性分析。开发了用于CFRP CAA中冲击损伤的替代模拟方法和损伤量化技术。