We describe reshaping of active textiles actuated by bending of Janus fibres comprising both active and passive components. A great variety of shapes, determined by minimising the overall energy of the fabric, can be produced by varying bending directions determined by the orientation of Janus fibres. Under certain conditions, alternative equilibrium states, one absolutely stable and the other metastable coexist, and their relative energy may flip its sign as system parameters, such as the extension upon actuation, change. A snap-through reshaping in a specially structured textile reproduces the Venus flytrap effect.

中文翻译：

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带有Janus纤维的活性纺织品

我们描述了由包含主动和被动组件的Janus纤维弯曲致动的主动式纺织品的重塑。通过改变由Janus纤维的方向确定的弯曲方向，可以生产出各种形状，这些形状是通过使织物的总能量最小化来确定的。在某些条件下，替代的平衡状态，一个绝对稳定的状态和另一个处于亚稳态的状态共存，并且它们的相对能量可能会随着系统参数（如致动时的扩展）的变化而翻转其符号。快速成型的特殊结构纺织品可重现维纳斯捕蝇器的效果。