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arxiv: patt-sol/9510002 · v1 · submitted 1995-10-11 · patt-sol · nlin.PS

Pattern selection of cracks in directionally drying fracture

Teruhisa S. Komatsu (Department of Physics , Tohoku University , Sendai , Japan) , Shin-ichi Sasa (Department of Pure , Applied Sciences , College of Arts , Sciences
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University of Tokyo Tokyo Japan; Present address: Department of Physics University of Illinois at Urbana-Champaign Urbana IL USA)
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keywords cracksallaindirectionallydryingexperimentallimatpatternselection
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We study pattern selection of cracks in directionally drying fractures by analyzing the experimental systems recently devised by C. Allain and L. Limat. [Phys. Rev. Lett. {\bf 74}, 2981 (1995).] Proposing a simple picture of crack formation, we clarify the mechanism of how cracks array regularly and find that the interval between neighboring cracks is proportional to the $2/3$ power of the cell thickness. This result explains well the experimental data of Allain and Limat.

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