Crack dynamics and crack surfaces in elastic beam lattices
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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Physical Review E, Volume 57, issue 2, pp. R1259-R1262
Abstract
The dynamics of propagating cracks is analyzed in elastic two-dimensional lattices of beams. At early times, inertia effects and static stress enhancement combine so that the crack-tip velocity is found to behave as t1/7. At late times a minimal crack-tip model reproduces the numerical simulation results. With no disorder and for fast loading, a “mirror-mist-mirror” crack-surface pattern emerges. Introduction of disorder leads, however, to the formation of the “mirror-mist-hackle”–type interface typical in many experimental situations.Description
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Åström, J, Alava, M & Timonen, J 1998, 'Crack dynamics and crack surfaces in elastic beam lattices', Physical Review E, vol. 57, no. 2, pp. R1259-R1262. https://doi.org/10.1103/PhysRevE.57.R1259