生物灵感螺旋结构玻璃纤维树脂矩阵复合材料的重复冲击损伤行为和损伤耐受性
Liang He1, Zhaoyue Yao1, Lanlan Jiang1
1School of Science, Harbin Institute of Technology, Shenzhen 518055, China.
Polymers
|July 12, 2025
概括
本研究介绍了聚合物复合材料的生物螺旋设计,提高了抗冲击性能. 新型配置提高了重复冲击下的耐损性和结构完整性.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料工程 复合材料工程
- 机械工程 机械工程
背景情况:
- 聚合物矩阵复合材料 (PMC) 由于其高强度与重量比在各种行业中至关重要.
- 提高PMC的抗冲击性和耐损性对于要求高的应用中的安全性和性能至关重要.
- 现有的设计往往难以有效地减轻重复撞击事件下的损害.
研究的目的:
- 为玻璃纤维增强聚合物矩阵复合材料提出和研究一种新的生物螺旋结构.
- 系统地评估这些生物结构的多重冲击阻力和损伤耐受性.
- 为高性能,抗冲击复合材料开发优化的设计.
主要方法:
- 制造具有交叉螺旋和对称螺旋结构的生物层材料.
- 在多个撞击周期 (1, 5, 10, 15) 进行重复的低能耗撞击测试 (5 J).
- 使用超声波C扫描和X射线计算机断层扫描 (CT) 进行损伤分析的高级表征.
- 开发和验证用于冲击模拟和冲击后行为分析的有限元模型.
主要成果:
- 在重复撞击下介层间损伤传播机制的详细描述.
- 识别特定于生物螺旋结构的故障特征.
- 成功开发了一种全面的有限元模型,模拟冲击和冲击后压缩.
- 基于模拟和实验数据,设计和提出了三种优化的新型生物体配置.
结论:
- 生物螺旋结构提供了一个有前途的方法来提高聚合物矩阵复合材料的抗冲击性和耐损伤性.
- 开发的有限元模型为预测和优化冲击负载下的复合材料性能提供了有价值的工具.
- 优化的生物体设计为在冲击关键应用中提高高性能复合材料的结构完整性提供了显著的潜力.
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