在高速冲击下对半圆柱形状复合弹弹道性能进行数值调查
Huiwei Yang1,2, Dongyang Gao1, Pengcheng Chen1,2
1College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
Materials (Basel, Switzerland)
|May 27, 2023
概括
受到的启发,研究人员使用碳化陶 (SiC) 和开发了半圆柱形复合材料外. 与外相比,NACRE类复合材料表现出优越的抗冲击能力和更高的弹道极限,为航空航天应用提供了洞察力.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 航空航天工程 航空航天工程
背景情况:
- 纳克尔表现出异常的抗冲击能力,激发了仿生设计的灵感.
- 航空航天应用需要具有高抗冲击能力的先进材料.
- 复合结构提供可调节的性能,以提高性能.
研究的目的:
- 为了研究类似纳克尔的复合材料外的抗冲击性能.
- 为了比较正规六边形和沃罗诺伊多边形排列的性能.
- 评估构成材料 (SiC和) 对冲击反应的影响.
主要方法:
- 用碳化陶 (SiC) 和 (AA5083-H116) 制成的半圆柱形外的数值分析.
- 设计两个平板排列:正规六角形和沃罗诺伊多边形.
- 通过能量变化,损伤特征,剩余速度和外位移来评估抗冲击能力.
主要成果:
- 半圆柱形陶外显示出高刚性和弹性极限,但由于振动引起的裂而失败.
- 类似纳克的复合材料性能优于外,具有更高的弹道极限,只造成局部损伤.
- 正规的六角形安排提供了比沃罗诺伊多边形更好的抗冲击能力.
结论:
- 类似Nacre的复合材料外为航空航天应用提供了增强的抗冲击性能.
- 结构设计,特别是组件的排列,显著影响弹道性能.
- 这项研究为设计仿生状结构以减轻影响提供了一个参考.
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