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Phys. Rev. Lett. 88, 014304 (2001) [4 pages]

Oscillating Fracture Paths in Rubber

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Robert D. Deegan*, Paul J. Petersan, M. Marder, and Harry L. Swinney
Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, Austin, Texas 78712

Received 6 July 2001; published 19 December 2001

See accompanying Physics Focus

We have found an oscillating instability of fast-running cracks in thin rubber sheets. A well defined transition from straight to wavy cracks occurs as the amount of biaxial strain increases. Measurements of the amplitude and wavelength of the oscillation near the onset of this instability indicate that the instability is a Hopf bifurcation.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.014304
DOI:
10.1103/PhysRevLett.88.014304
PACS:
46.50.+a, 81.05.Lg, 83.60.Uv, 89.75.Kd

*Email address: rddeegan@chaos.ph.utexas.edu

 
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