arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1809.04620cond-mat.soft
收藏

变形体结构的弹性与稳定性

Elasticity and Stability of Shape Changing Structures

Douglas P. Holmes

摘要:

当我们进入设计物质时代--物体可以根据命令变形和改变形状--我们需要什么工具来创造变形结构?弹性形变的核心是膨胀和扭曲的组合,或者拉伸和弯曲的组合。后者之间的竞争可能导致弹性不稳定性,在过去的15年里,这些不稳定性提供了多种方法来规定和控制形状变化。弯曲、折叠、折叠、折缝、折断已经成为一种机制,当它们和谐地结合在一起时,就能实现机械超材料、自折叠折纸、超轻和折叠折纸,以及从一种形状变成另一种形状的结构。在这篇综述中,我的目标是将弹性不稳定性的基本原理与目前在机械超材料中发现的先进功能联系起来。

英文摘要:

As we enter the age of designer matter - where objects can morph and change shape on command - what tools do we need to create shape-shifting structures? At the heart of an elastic deformation is the combination of dilation and distortion, or stretching and bending. The competition between the latter can cause elastic instabilities, and over the last fifteen years these instabilities have provided a multitude of ways to prescribe and control shape change. Buckling, wrinkling, folding, creasing, snapping have become mechanisms that when harmoniously combined enable mechanical metamaterials, self-folding origami, ultralight and ultrathin kirigami, and structures that appear to grow from one shape to another. In this review, I aim to connect the fundamentals of elastic instabilities to the advanced functionality currently found within mechanical metamaterials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑