纵向增强的双重重新进入蜂的参数独立的变形行为
Levente Széles1, Richárd Horváth2, Mihály Réger2
1Doctoral School on Materials Sciences and Technologies, Óbuda University, H-1034 Budapest, Hungary.
Polymers
|November 9, 2024
概括
一种新的X增强辅助性蜂巢设计增强了稳定性和机械性能,消除了曲. 这种先进的格子结构为各种应用提供可预测的变形和可调节的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 固体力学 固体力学是什么
背景情况:
- 辅助性蜂巢结构表现出独特的负波桑比率属性.
- 传统的auxetic设计可能会受到压缩下曲不稳定的影响.
- 提高结构完整性,同时保持理想的机械性能对于先进的应用至关重要.
研究的目的:
- 为辅助性蜂巢提出并研究一种新型单元细胞设计,可以防止曲.
- 评估拟议结构的机械性能和变形行为.
- 将新设计与广泛的参数范围进行比较,并评估其适用性.
主要方法:
- 开发一个对角强化的双重回入的辅助性蜂巢 (X强化的辅助性蜂巢).
- 3D打印样品的压缩测试使用专门的柔性但坚固的树脂.
- 通过有限元分析 (FEA) 在高度准确的环境中验证设计.
主要成果:
- 增强X的辅助性蜂巢设计消除了曲,实现了参数独立的,不曲的变形行为.
- 机械性能显著增加,包括压缩阻力和能量吸收 (高达四倍).
- 联邦能源局证实,在得到良好支持的地区,压力度达到临界水平,这表明临界失效的可能性降低了.
结论:
- 新的X增强辅助性蜂巢设计显著提高了变形稳定性和机械性能.
- 虽然结构失去了其辅助性质,但其可预测的行为和可调的机械特性是有利的.
- 这种先进的格子单元细胞设计将辅助性蜂巢定位为高性能,广泛适用的结构.
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