马丁形相变元材料:概念和模型
Sosuke Kanegae1, Masayuki Okugawa1, Yuichiro Koizumi1
1Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Osaka, Japan.
Materials (Basel, Switzerland)
|November 14, 2023
概括
研究人员创造了一种新的机械超材料,表现出马氏体转变. 这种通过增材制造制造的双稳定结构显示出形状记忆和超弹性效应的潜力.
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:
- 机械超材料提供了常规材料中无法找到的调节性质.
- 马石转化是形状记忆合金和陶中的一个关键现象,使其能够产生独特的机械反应.
- 在工程化超材料中实现马氏体转化仍然是一个重大挑战.
研究的目的:
- 开发和描述一种新型的机械超材料,该材料表现出马氏体转化.
- 以分析方式建模管理元材料可比性行为的能量格局.
- 为了证明使用增材制造制造这种超材料的可行性.
主要方法:
- 对元材料单元细胞的弹性能量的分析公式.
- 设计一个具有特定光束和链配置的可二元化单元电池.
- 使用热塑性聚氨进行元材料的增材制造 (材料挤出).
- 对超材料的变形行为进行实验性表征.
主要成果:
- 成功开发了一种表现出马氏体变化的机械超材料.
- 这种超材料表现出一种可变结构,通过剪切变形在两个稳定的配置之间进行过渡.
- 分析模型准确地描述了能量屏障,考虑到拉力,压力和曲变形.
- 制造的超材料表现出类似于马氏体变化的变形特征.
结论:
- 开发的机械超材料是第一个表现出马氏体转变的材料.
- 该设计允许可调节的机械性能,包括潜在的形状记忆和超弹性.
- 增材制造为制造具有马氏体转化能力的复杂超材料提供了可行的途径.
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