Mechanical hysterons with tunable interactions of general sign

Joseph D. Paulsen
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Abstract

Hysterons are the basic units of hysteresis that underlie many of the complex behaviors of disordered matter. Recent work has sought to develop designs for mechanical hysterons, both to better understand their interactions and to create materials that respond to their mechanical environment in novel ways. Elastic structures including slender beams, creased sheets, and shells offer the requisite bistability for artificial hysterons, but producing and controlling interactions between such structures has proven challenging. Here we report a mechanical hysteron composed of rigid bars and linear springs, which has controllable properties and tunable interactions of general sign. We derive an approximate mapping from the system parameters to the hysteron properties, and we show how collective behaviors of multiple hysterons can be targeted by adjusting geometric parameters on the fly. Our results provide a basic step towards hysteron-based materials that can sense, compute, and respond to their mechanical environment.
具有一般符号可调相互作用的机械滞留器
滞后子是滞后的基本单位,是无序物质许多复杂行为的基础。最近的研究试图开发机械滞后子的设计,以便更好地理解它们之间的相互作用,并创造出能以新颖方式对机械环境做出反应的材料。弹性结构包括细长的梁、有皱褶的薄片和壳,为人造滞后子提供了必要的双稳态性,但事实证明,制造和控制这些结构之间的相互作用具有挑战性。在此,我们报告了一种由刚性杆和线性弹簧组成的机械滞留器,它具有可控的特性和一般符号的可调相互作用。我们得出了从系统参数到滞留器属性的近似映射,并展示了如何通过即时调整几何参数来瞄准多个滞留器的集体行为。我们的研究成果为实现能感知、计算和响应其机械环境的基底材料迈出了重要的一步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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