多相磁铁质弹性体的磁力机械合
Edward J Barron Iii1,2,3, Ella T Williams1, Nathan Lazarus4
1Mechanical Engineering, Soft Materials and Structures Lab, Virginia Tech, Blacksburg, VA 24061, United States of America.
概括
研究具有固体和液体磁性含的磁修复性弹性体 (MRE) 揭示了含阶段如何影响性能. 这项研究开发了一个模型来预测MRE特性,有助于设计特定应用的材料.
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
- 磁力学 磁力学 是一种
背景情况:
- 磁铁质弹性体 (MREs) 是先进的软磁性复合材料,在磁场下具有可调节的刚性和缓性能.
- 固态颗粒复合 (RC) MRE已经建立,但磁性流体复合 (FC) MRE提供了新的可能性.
- 了解纳入阶段对磁力机械行为的影响对于优化MRE设计至关重要.
研究的目的:
- 通过实验评估固体和液体磁性包含如何影响MRE特性.
- 为各种MRE材料架构开发一个预测模型.
- 根据所需的磁力机械反应,创建材料设计图来定制MRE.
主要方法:
- 在不同磁场下对RC,FC和混合MRE进行实验评估.
- 基于磁性和机械能量原理构建模型.
- 开发材料设计地图的相关结构,零场特性,以及具有弹性模量和特定损失的应用场.
主要成果:
- 磁性包含的阶段 (固体与液体) 显著影响了MRE的磁力机械性能.
- 一个简单的模型准确地捕捉了不同MRE架构的性能.
- 磁力机械合因子与复合材料的零场特性直接相关.
结论:
- 纳入阶段是MRE设计的关键因素,它会影响变形过程中的能量密度变化.
- 开发的模型和设计图为制造具有目标性质的MRE提供了一个框架.
- 这项研究通过将材料结构与功能性能联系起来,提高了MRE设计能力.
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