CF/PEEK/TPU柔性复合材料在平面内循环机械性能,具有零波桑比率
Junpeng Gao1, Tingting Wang1, Hu Xu1
1Composite Technology Center, AVIC Manufacturing Technology Institute, Beijing 100191, China.
Materials (Basel, Switzerland)
|November 9, 2024
概括
这项研究引入了一种新的零波桑比率柔性复合材料,使用3D打印的碳纤维增强聚乙基 (CF/PEEK) 蜂和热塑性聚氨 (TPU). 复合材料具有显著的内平面变形和结构稳定性,为先进的复合材料应用铺平了道路.
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
- 机械工程 机械工程
背景情况:
- 具有辅助性质 (零波桑比) 的柔性复合材料对于需要大变形的应用是可取的.
- 现有的制造方法可能无法有效地产生复杂的辅助性结构.
- 了解循环负荷下的机械行为对于结构完整性至关重要.
研究的目的:
- 用3D打印的CF/PEEK蜂和TPU制造和表征一种新的零波桑比率柔性复合材料.
- 评估开发的复合材料的内平面变形能力和循环机械性能.
- 调查可回收性评估的变形和故障机制.
主要方法:
- 通过3D打印制造零波桑比率CF/PEEK蜂钢筋.
- 将TPU粘合到CF/PEEK蜂的两侧,以创建柔性复合材料.
- 对平面内变形和循环机械性能进行实验评估.
- 变形和故障机制的分析.
主要成果:
- 开发的零波桑比率柔性复合材料实现了50%以上的平面内塑性变形,同时保持了其辅助性结构.
- CF/PEEK柔性复合材料MH22-t0.6-CT在循环负荷下表现出优越的结构稳定性,其长度增加约为12.53%.
- 变形和故障机制研究提供了关于复合材料在飞机中的可循环利用性的见解.
结论:
- 新型3D打印的CF/PEEK蜂增强TPU复合材料提供了出色的内平面变形和结构稳定性.
- 该材料显示出有希望的可回收性,得到了详细的机制分析的支持.
- 这项研究为开发大型内平面变形复合材料奠定了基础.
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