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  4. How to weave a perfect sphere with curved strips
 
conference paper

How to weave a perfect sphere with curved strips

Changyeob Baek
•
Alison Martin
•
Tian Chen  
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March 5, 2020
Bulletin of the American Physical Society
APS March Meeting 2020

Triaxial weaving, a craft technique that enables the generation of surfaces with tri-directional arrays of initially straight elastic strips, has long been loved by basket makers and artists seeking a combination of practical and aesthetically-pleasing structures. The design principles of traditional weaving are based on the observation that the non-hexagonal topology of unit cells imparts out-of-plane shapes. In the realm of differential geometry, the weaving tradition is rooted in the concept of Euler characteristics through the Gauss-Bonnet theorem, with discrete topological defects being used as building blocks. Taking an alternative point of departure, we introduce a novel approach for triaxial weaving that enables us to continuously span a variety of 3D shapes of the weave by tuning the natural in-plane curvature of the strips. We systematically explore the validity of the new strategy by quantifying the shape of experimental specimens with X-ray tomography in combination with continuum-based simulations. To demonstrate the potential of our design scheme, and as a canonical example, we present a fullerene-like weave that is perfectly spherical, which cannot be readily achieved using straight strips. Ellipsoidal and toroidal structures are also explored.

  • Details
  • Metrics
Type
conference paper
Author(s)
Changyeob Baek
Alison Martin
Tian Chen  
Samuel Poincloux  
Yingying Ren  
Julian Panetta  
Mark Pauly  
Pedro Reis  
Date Issued

2020-03-05

Publisher

American Physical Society

Published in
Bulletin of the American Physical Society
Volume

65

Issue

1

URL
https://meetings.aps.org/Meeting/MAR20/Session/U30.13
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
GCM  
Event nameEvent placeEvent date
APS March Meeting 2020

Denver, Colorado

March 2-6, 2020

RelationURL/DOI

IsDerivedFrom

https://infoscience.epfl.ch/record/306991?ln=fr
Available on Infoscience
January 12, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/202908
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