Tailoring the multistability of origami-inspired, buckled magnetic structures via compression and creasing,Materials Horizons

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Tailoring the multistability of origami-inspired, buckled magnetic structures via compression and creasing
Materials Horizons ( IF 12.2 ) Pub Date : 2021-09-09 , DOI: 10.1039/d1mh01152a
Yi Li ₁ , Samuel J Avis ₂ , Teng Zhang ₃ , Halim Kusumaatmaja ₂ , Xueju Wang _{1,

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Affiliation

Origami-inspired multistable structures are gaining increasing interest because of their potential applications in fields ranging from deployable structures to reconfigurable microelectronics. The multistability of such structures is critical for their applications but is challenging to manipulate due to the highly nonlinear deformations and complex configurations of the structures. Here, a comprehensive experimental and computational study is reported to tailor the multistable states of origami-inspired, buckled ferromagnetic structures and their reconfiguration paths. Using ribbon structures as an example, a design phase diagram is constructed as a function of the crease number and compressive strain. As the crease number increases from 0 to 7, the number of distinct stable states first increases and then decreases. The multistability is also shown to be actively tuned by varying the strain from 0% to 40%. Furthermore, analyzing energy barriers for reconfiguration among the stable states reveals dynamic changes in reconfiguration paths with increasing strains. Guided by studies above, diverse examples are designed and demonstrated, from programmable structure arrays to a soft robot. These studies lay out the foundation for the rational design of functional, multistable structures.

中文翻译：

通过压缩和折痕调整折纸风格的弯曲磁性结构的多重稳定性

折纸启发的多稳态结构因其在从可展开结构到可重构微电子学等领域的潜在应用而受到越来越多的关注。这种结构的多稳定性对其应用至关重要，但由于结构的高度非线性变形和复杂配置，因此难以操作。在这里，报告了一项综合实验和计算研究，以定制折纸启发的弯曲铁磁结构的多稳态及其重新配置路径。以带状结构为例，设计相图被构建为折痕数和压缩应变的函数。随着折痕数从 0 增加到 7，不同稳定状态的数量先增加然后减少。通过将应变从 0% 变化到 40%，还显示出多稳定性被主动调整。此外，分析稳定状态中重构的能垒揭示了重构路径随应变增加的动态变化。在上述研究的指导下，设计和演示了从可编程结构阵列到软机器人的各种示例。这些研究为功能性、多稳态结构的合理设计奠定了基础。

更新日期：2021-09-16

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