Shape-morphing into 3D curved surfaces with nacre-like composite architectures

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

18 Scopus Citations
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Author(s)

  • Lishuai Jin
  • Michael Yeager
  • Young Joo Lee
  • Daniel J. O’Brien
  • Shu Yang

Detail(s)

Original languageEnglish
Article numbereabq3248
Number of pages8
Journal / PublicationScience Advances
Volume8
Issue number41
Online published12 Oct 2022
Publication statusPublished - Oct 2022
Externally publishedYes

Link(s)

Abstract

Inhomogeneous in-plane deformation of soft materials or cutting and folding of inextensible flat sheets enables shape-morphing from two dimensional (2D) to three-dimensional (3D), while the resulting structures often have weakened mechanical strength. Shells like nacre are known for the superior fracture toughness due to the “brick and mortar” composite layers, enabling stress redistribution and crack stopping. Here, we report an optimal and universal cutting and stacking strategy that transforms composite plies into 3D doubly curved shapes with nacre-like architectures. The multilayered laminate exhibits staggered cut distributions, while the interlaminar shear mitigates the cut-induced mechanical weakness. The experimentally consolidated hemispherical shells exhibit, on average, 37 and 69% increases of compression peak forces, versus those with random cut distributions, when compressed in different directions. Our approach opens a previously unidentified paradigm for shape-conforming arbitrarily curved surfaces while achieving high mechanical performance. © 2022 The Authors, some rights reserved

Research Area(s)

Citation Format(s)

Shape-morphing into 3D curved surfaces with nacre-like composite architectures. / Jin, Lishuai; Yeager, Michael; Lee, Young Joo et al.
In: Science Advances, Vol. 8, No. 41, eabq3248, 10.2022.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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