具有梯度波动结构的生物灵感介层混合复合板材的低速度冲击阻力
1Transportation Institute, Inner Mon golia University, Hohhot, 010021, PR China; Inner Mongolia Engineering Research Center for Intelligent Transportation Equipment, Hohhot, 010021, PR China.
Acta biomaterialia
|April 26, 2025
概括
灵感来自陷甲,碳纤维复合材料中的新型渐变波动结构显著提高了抗冲击能力. 这种生物灵感设计可以减少80.7%的损伤面积,并改善能量消耗,从而提高材料性能.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
- 生物启发工程 生物启发工程
背景情况:
- 混合碳纤维增强聚合物复合材料在各种行业中至关重要.
- 提高这些材料的抗冲击性和耐损性仍然是一个重大挑战.
- 自然系统通常表现为机械性能优化的结构.
研究的目的:
- 开发一种生物灵感的设计方法,用于混合复合材料中的层间布置.
- 为了提高碳纤维增强聚合物复合材料的抗冲击性和耐损性.
- 为了研究由陷灵感的渐变波动结构的有效性.
主要方法:
- 在陷的下中发现了梯度波动结构的发现.
- 将这种渐变波动结构纳入纤维间层形成.
- 使用单向纤维和通过模具压成成形的织物布局制造生物启发的介层混合层.
主要成果:
- 3K-PUP层材显示,峰值接触力增加了10.2%,能量消耗增加了46.2%.
- 在生物灵感层中,在撞击时损伤面积显著减少80.7%.
- 生物灵感板显示其余压力强度增加6.6%,表明其承载能力优越.
结论:
- 生物启发的梯度波动结构对于限制裂传播和诱导大弹性变形至关重要.
- 这些生物灵感的层材料提供了有效的裂纹尖端屏蔽和抗破裂机制.
- 这项研究显著提高了混合复合材料对冲击的耐损性.
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