Metastability of a Periodic Network of Threads: Shapes of a Knitted Fabric.

IF 8.1 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Physical review letters Pub Date : 2024-12-13 DOI:10.1103/PhysRevLett.133.248201
Jérôme Crassous, Samuel Poincloux, Audrey Steinberger
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Abstract

Knitted fabrics are metamaterials with remarkable mechanical properties, such as extreme deformability and multiple history-dependent rest shapes. This Letter shows that those properties may stem from a continuous set of metastable states for a fabric free of external forces. This is evidenced through experiments, numerical simulations, and analytical developments. Those states arise from the frictional contact forces acting in the braid zone where the threads interlace and follow a line in the configuration space accurately described by a 2D-elastica model. The friction coefficient sets a terminal point along this line, and the continuous set of metastable states is obtained by varying the braid inclination while contact forces remain on the friction cone.

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周期线网的亚稳态:针织物的形状。
针织物是一种具有优异力学性能的超材料,具有极强的可变形性和多种依赖历史的静止形状。这封信表明,这些特性可能源于无外力的织物的连续亚稳态集。这可以通过实验、数值模拟和分析发展来证明。这些状态是由作用于编织区的摩擦接触力产生的,在编织区内,螺纹相互交错,并沿着二维弹性模型精确描述的位形空间中的一条线运动。摩擦系数在这条线上设置了一个端点,在接触力保持在摩擦锥上的情况下,通过改变编织倾角获得连续的亚稳态集。
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来源期刊
Physical review letters
Physical review letters 物理-物理:综合
CiteScore
16.50
自引率
7.00%
发文量
2673
审稿时长
2.2 months
期刊介绍: Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks
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