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January 2009 EPL, 85 (2009) 24002 www.epljournal.org
 

Summary: January 2009
EPL, 85 (2009) 24002 www.epljournal.org
doi: 10.1209/0295-5075/85/24002
Energy distributions and effective temperatures in the packing
of elastic sheets
S. Deboeuf, M. Adda-Bedia and A. Boudaoud
Laboratoire de Physique Statistique de l'Ecole Normale Sup´erieure, CNRS UMR 8550 - 24 rue Lhomond, 75005 Paris,
France, EU
received 21 July 2008; accepted in final form 15 December 2008
published online 22 January 2009
PACS 46.32.+x ­ Continuum mechanics of solids: Static buckling and instability
PACS 46.65.+g ­ Continuum mechanics of solids: Random phenomena and media
PACS 64.70.qd ­ Thermodynamics and statistical mechanics
Abstract ­ The packing of elastic sheets is investigated in a quasi two-dimensional experimental
setup: a sheet is pulled through a rigid hole acting as a container, so that its configuration is
mostly prescribed by the cross-section of the sheet in the plane of the hole. The characterisation
of the packed configuration is made possible by using refined image analysis. The geometrical
properties and energies of the branches forming the cross-section are broadly distributed. We find
distributions of energy with exponential tails. This setup naturally divides the system into two
sub-systems: in contact with the container and within the bulk. While the geometrical properties of

  

Source: Adda-Bedia, Mokhtar - Laboratoire de Physique Statistique, Département de Physique, École Normale Supérieure

 

Collections: Physics