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数字模拟多稳定的花形复合板材与轴对称的铺设
Padmapooja Jambulingam1,2, Dan Wang3, Hortense Le Ferrand4,5
1School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
Scientific reports
|April 22, 2025
概括
研究人员通过改变花形层状几何形状和纤维方向来探索多稳定的复合材料. 这种设计方法使软机器人等先进应用程序能够实现更稳定的状态.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 机器人技术 机器人技术 机器人技术
背景情况:
- 多稳定性使材料能够通过外部触发器在多个稳定的形状之间切换.
- 传统的双面复合材料具有矩形形状限制了整合到复杂的系统.
- 花形层材料提供了一个新的几何结构,用于探索增强的多稳定性.
研究的目的:
- 通过局部变化的纤维取向和量身定制几何学来研究双层层层中的多稳定性.
- 为了证明花形层材在实现多个稳定状态方面的潜力.
- 为软机器人和仿生设备设计复杂的多级结构提供一个基准.
主要方法:
- 利用有限元法 (FEM) 模拟变形并分析稳定状态.
- 使用全球和本地坐标系的多种花尺寸和本地纤维方向.
- 在各种机械负荷条件下研究材料的行为.
主要成果:
- 证明了不同的几何形状和局部光纤方向可以实现多稳定性.
- 证实了花中较大的宽度与长度比率通常会增加稳定状态的数量.
- 模拟结果为实验验证和未来设计优化提供了基础.
结论:
- 具有量身定制的纤维取向的花形层材对于创建多稳定的复合材料是有效的.
- 几何和方向参数显著影响可实现状态的数量和稳定性.
- 这种方法为软机器人和其他需要复杂形状变形能力的应用提供了先进材料的途径.
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