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  1. Home
  2. Multistable Sheets With Rewritable Patterns For Switchable Shape-morphing.
  1. Home
  2. Multistable Sheets With Rewritable Patterns For Switchable Shape-morphing.

Related Experiment Video

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

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Multistable sheets with rewritable patterns for switchable shape-morphing.

A S Meeussen1,2,3, M van Hecke4,5

  • 1AMOLF, Amsterdam, the Netherlands. a.meeussen@gmail.com.

Nature
|September 21, 2023

View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed rewritable shape-morphing metasheets using mechanical multistability. These sheets form stable, complex 3D shapes after stimuli removal, offering erasable and repeatable actuation for diverse applications.

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Physics

Background:

  • Flat sheets can be patterned to deform into complex 3D shapes using external stimuli.
  • Current methods lack intrinsic shape selection, require prepatterning, and result in permanent or unstable shapes.

Purpose of the Study:

  • To introduce a novel shape-morphing strategy based on mechanical multistability.
  • To overcome limitations of existing methods, enabling stable, erasable, and repeatable shape transformations.

Main Methods:

  • Utilized undulating metasheets designed to store mechanical stimuli memories in self-stabilizing scars.
  • Investigated the transition to sharply selected curved, curled, and twisted shapes upon stimulus removal.

Main Results:

  • Demonstrated that persistent scars force stable shape switching after external stimuli are removed.
  • Showcased that these stable shapes can be erased by applying appropriate force, enabling rewritable patterns.
  • Achieved repeated and robust actuation with the developed strategy.

Conclusions:

  • Mechanical multistability offers a robust solution for controllable and reversible shape morphing in sheets.
  • The material-agnostic and scale-free strategy has broad applicability from micro-scale devices to architectural structures.