3D打印连续混合动力纤维增强复合材料的抗冲击性能
Ali Akmal Zia1, Xiaoyong Tian1, Muhammad Jawad Ahmad1
1State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xian 710049, China.
Polymers
|November 14, 2023
概括
这项研究使用混合纤维增强了3D打印复合材料的弹性. 混合复合材料与非混合复合材料相比,表现出优越的抗冲击性能和能量吸收能力.
科学领域:
- 材料科学 材料科学 材料科学
- 增材制造 增材制造 增材制造
- 复合材料 复合材料 复合材料
背景情况:
- 对于关键应用,3D打印复合材料需要提高弹性.
- 材料挤出技术 (MEX) 在提高复合材料性方面面临挑战.
- 整合连续混合纤维是提高性能的一个关键策略.
研究的目的:
- 为了提高3D打印复合材料的抗冲击性能.
- 研究碳纤维 (CF) 和凯弗拉纤维 (KF) 与聚乳酸 (PLA) 混合的效果.
- 在各种冲击能量下评估能量吸收能力.
主要方法:
- 使用PLA,CF和不同类型的Kevlar纤维 (130D,200D) 生产混合和非混合复合材料.
- 在20 J,30 J,40 J和50 J的冲击阻力测试中,光纤方向为0°/90°.
- 使用CT扫描分析受损区域和能量吸收.
主要成果:
- 混合复合材料 (PLA + CF + KF) 的抗冲击性和能量吸收性显著提高 (5.52-11.64%的增加).
- 在杂交标本中观察到受损区域减少 (71.45%至90.486%).
- CT扫描证实,结合纤维刚度和延长性质可以增强骨折阻力.
结论:
- 混合复合材料提供卓越的性和灵活性,非常适合抗冲击.
- 开发的混合复合材料显示出替代单纤维复合材料的潜力.
- 未来的应用包括航空航天和汽车工业.
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