用卡纳乌巴纤维增强的环氧复合材料的计算和实验弹道行为:一个独立的目标和多层装甲系统
Raí Felipe Pereira Junio1, Bernardo Soares Avila de Cêa1, Douglas Santos Silva1
1Military Institute of Engineering-IME, Department of Materials Science, Praça General Tibúrcio, 80, Praia Vermelha, Urca, Rio de Janeiro CEP 22290-270, Brazil.
Polymers
|February 26, 2025
概括
卡纳乌巴纤维复合材料为弹道防护提供了一个可持续的替代方案. 与阿拉米德织物相比,这些天然的纤维复合材料显示出更好的能量吸收和更少的痕.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 复合材料 复合材料 复合材料
背景情况:
- 开发可持续和高效的装甲系统对于保护人员和车辆至关重要.
- 天然纤维纤维 (NLFs) 为先进材料应用提供了一个有前途的可再生资源.
研究的目的:
- 为了研究用卡纳乌巴 (Copernicia prunifera) 天然纤维纤维增强的环氧复合材料的弹道性能.
- 评估这些复合材料作为多层装甲系统 (MAS) 的组件的潜力.
主要方法:
- 具有不同卡纳乌巴纤维体积分 (0-40%) 的环氧复合材料的制造.
- 使用7.62毫米弹药进行弹道撞击测试,以测量剩余速度和吸收能量.
- 使用扫描电子显微镜 (SEM) 分析断裂区域,并与显式动态模拟进行比较.
主要成果:
- 复合材料的极限速度在 213-233 m/s 之间,吸收能量为 221-264 J,性能优于阿拉米德织物.
- 所有测试的配方都符合美国国家司法研究所 (NIJ) 标准的入深度,40%的纤维复合材料显示最低的深度 (31.2毫米).
- 模拟结果与实验数据密切匹配,阐明了弹道事件期间的变形机制.
结论:
- 卡纳乌巴纤维增强环氧复合材料显示了弹道防护应用的巨大潜力.
- 这些复合材料是一种可行的可持续替代品,特别是在多层装甲系统中作为中间层.
- 该研究强调了天然纤维在增强复合材料保护能力方面的有效性.
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