用于保护甲的分层异构复合材料系统的设计和性能
Farah Siddique1, Fuguo Li1,2, Mirza Zahid Hussain1
1State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
Materials (Basel, Switzerland)
|July 29, 2023
概括
一种结合TC4和2024Al合金的新型分层材料显示出优越的能量吸收和反透性. 这种柔性-柔性结构为柔性-柔性设计提供了一个有前途的替代方案,以提高抗冲击性能.
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:
- 层层的异构结构对于抗冲击性至关重要.
- 传统的脆柔性层级材料有其局限性.
- 在复合材料系统中优化能量吸收是一个持续的挑战.
研究的目的:
- 开发和分析一种新的分层异构复合材料系统 (TC4/2024Al合金).
- 为了提高能量吸收能力和反透行为.
- 为了研究柔性-柔性分层结构的性能.
主要方法:
- 修改后的佛罗伦萨模型用于能量吸收分析.
- 使用LS-Dyna进行验证的数值模拟.
- 分裂霍普金森压力杆 (SHPB) 压缩试验用于变形分析.
主要成果:
- 该TC4/2024Al合金系统表现出增强的能量吸收和反透.
- 分析和数值模型显示出很好的一致性.
- 层层的结构表现得像一个统一的系统,具有弹性碰撞特性.
- 变形行为以应变能量密度和应变速率灵敏度为特征.
结论:
- 开发的分层异构复合材料系统表现出卓越的性能.
- 具有硬度梯度的柔性-柔性材料为脆性-柔性组合提供了可行的替代方案.
- 这种设计显示了先进的抗冲击应用的潜力.
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