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Elsevier, Comptes Rendus Mécanique, 12(331), p. 811-816

DOI: 10.1016/j.crme.2003.10.002

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Oscillatory fracture path in thin elastic sheet

Journal article published in 2003 by Benoit Roman, P. M. Reis, P. M. Reisb, Basile Audoly, Simon De Villiers, Vincent Viguie, Denis Vallet
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This paper is available in a repository.

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Abstract

We report a novel mode of quasi-static oscillatory crack propagation when a cutting tip of moderately large width is driven through a thin brittle polymer film. Experiments show that the amplitude and wavelength of the oscillatory crack paths scale linearly with the width of the cutting tip over a wide range of length scales but are independent of the width of the sheet and of the cutting speed. We propose a mechanism for this instability, based on the coupling between crack propagation and out-of-plane deformations of the film. To cite this article: B. Roman et al., C. R. Mecanique 331 (2003).