Role of the sample thickness in planar crack propagation
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© 2013 American Physical Society (APS). This is the accepted version of the following article: Barai, Pallab & Nukala, Phani K. V. V. & Alava, Mikko J. & Zapperi, Stefano. 2013. Role of the sample thickness in planar crack propagation. Physical Review E. Volume 88, Issue 4. 042411/1-7. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.88.042411, which has been published in final form at http://journals.aps.org/pre/abstract/10.1103/PhysRevE.88.042411.
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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042411/1-7
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Physical Review E, Volume 88, Issue 4
Abstract
We study the effect of the sample thickness in planar crack front propagation in a disordered elastic medium using the random fuse model. We employ different loading conditions and we test their stability with respect to crack growth. We show that the thickness induces characteristic lengths in the stress enhancement factor in front of the crack and in the stress transfer function parallel to the crack. This is reflected by a thickness-dependent crossover scale in the crack front morphology that goes from from multiscaling to self-affine with exponents, in agreement with line depinning models and experiments. Finally, we compute the distribution of crack avalanches, which is shown to depend on the thickness and the loading mode.Description
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Barai, Pallab & Nukala, Phani K. V. V. & Alava, Mikko J. & Zapperi, Stefano. 2013. Role of the sample thickness in planar crack propagation. Physical Review E. Volume 88, Issue 4. 042411/1-7. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.88.042411.