.png){kind=icon}
返回
Transformable topological mechanical metamaterials
.png){kind=icon}
OA
AI
DOI：10.1038/ncomms14201.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Mechanical metamaterials are engineered materials whose structures give them novel mechanical properties, including negative Poisson's ratios, negative compressibilities and phononic bandgaps. Of particular interest are systems near the point of mechanical instability, which recently have been shown to distribute force and motion in robust ways determined by a nontrivial topological state. Here we discuss the classification of and propose a design principle for mechanical metamaterials that can be easily and reversibly transformed between states with dramatically different mechanical and acoustic properties via a soft strain. Remarkably, despite the low energetic cost of this transition, quantities such as the edge stiffness and speed of sound can change by orders of magnitude. We show that the existence and form of a soft deformation directly determines floppy edge modes and phonon dispersion. Finally, we generalize the soft strain to generate domain structures that allow further tuning of the material.
Keyword:
INSULATORS
NETWORKS
LATTICES
PHONONS
STATES
UNITS
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
15.7
论文数:
9.4W
被引数:
91.2W
机构
引用论文
Topologically robust sound propagation in an angular-momentum-biased graphene-like resonator lattice.png)
NATURE COMMUNICATIONSOAAI
NATURE COMMUNICATIONSIF15.7
OAAI分享收藏Chromosome Y Regulates Survival Following Murine Coxsackievirus B3 InfectionY染色体调节小鼠柯萨奇病毒B3感染后的生存OAAI
OAAI分享收藏FOXO3a elicits a pro-apoptotic transcription program and cellular response to human lung carcinogen nicotine-derived nitrosaminoketone (NNK)Lung Cancer
Lung CancerIF0
PREAI
分享收藏
查看更多内容