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Phys Rev Lett. 2006 Oct 20;97(16):166104. Epub 2006 Oct 20.

Spiral patterns in the packing of flexible structures.

Author information

1
Laboratoire de Physique Statistique de l'Ecole Normale Supérieure, 24 Rue Lhomond, Paris Cedex 05, France.

Abstract

Spiral patterns are found to be a generic feature in close-packed elastic structures. We describe model experiments of compaction of quasi-1D sheets into quasi-2D containers that allow simultaneous quantitative measurements of mechanical forces and observation of folded configurations. Our theoretical approach shows how the interplay between elasticity and geometry leads to a succession of bifurcations responsible for the emergence of such patterns. Both experimental forces and shapes are also reproduced without any adjustable parameters.

PMID:
17155417
DOI:
10.1103/PhysRevLett.97.166104
[Indexed for MEDLINE]

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