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On the tearing of thin sheets E. Bayart *, A. Boudaoud, M. Adda-Bedia
 

Summary: On the tearing of thin sheets
E. Bayart *, A. Boudaoud, M. Adda-Bedia
Laboratoire de Physique Statistique, ENS, Paris VI, Paris VII, CNRS, 24 rue Lhomond, 75005 Paris, France
a r t i c l e i n f o
Article history:
Received 17 December 2009
Received in revised form 25 February 2010
Accepted 5 March 2010
Available online 11 March 2010
Keywords:
A. Crack path
Thin plate theory
Crack stability
B. Crack mechanics
a b s t r a c t
We perform an experimental study to investigate the propagation of one or two cracks in a
thin elastic sheet of a brittle material torn in an out-of-plane shear mode. We observe that
a single crack always follows a straight path, whereas two cracks propagating simulta-
neously follow curved paths and merge, forming a tongue-like shape. The present experi-
mental setup allows the understanding of how the energy introduced at a large scale is

  

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

 

Collections: Physics