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双材料蜂巢的先进设计和制造,以提高刚性和弹性
Jiajing Dong1,2, Songtao Ying1,2, Zhuohao Qiu1,2
1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.
Micromachines
|November 25, 2023
概括
双材料3D打印通过结合刚性聚乳酸和软热塑性聚氨来增强辅助性重新进入的蜂结构 (AREH). 这提高了对先进材料设计的抗冲击性能和结构完整性.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 辅助性重新进入蜂巢结构 (AREH) 努力平衡刚性和弹性.
- 现有的设计经常使用单一的材料,限制了性能.
- 需要具有更好的抗冲击和机械性能的先进结构.
研究的目的:
- 为了研究双材料印刷,以增强AREH结构.
- 引入和评估曲的重新进入的蜂巢结构 (CREH).
- 分析材料系统 (PLA/TPU) 和结构类型对机械反应的影响.
主要方法:
- 使用化沉积建模 (FDM) 3D打印技术.
- 开发了使用刚性聚乳酸 (PLA) 和软热塑性聚氨 (TPU) 的复合结构.
- 将双材料打印结构与单材料对应结构进行比较.
主要成果:
- 与单一材料结构相比,双重材料结构表现出延迟的密集化.
- 柔软的中间层材料提供了显著的冲击吸收和保护.
- 结构类型和材料组合影响了应力分布和机械行为.
结论:
- 双材料印刷有效地提高了AREH结构的性能.
- 刚性和软性材料的组合增强了抗冲击能力和结构完整性.
- 这些发现为设计先进的双重材料再进入蜂巢提供了参考.
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