Complexity in dislocation dynamics: model

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dc.creatorMiguel, M. -Carmen
dc.creatorVespignani, Alessandro
dc.creatorZapperi, Stefano
dc.creatorWeiss, Jerome
dc.creatorGrasso, Jean-Robert
dc.date2001-05-02
dc.date.accessioned2026-07-07T02:41:17Z
dc.date.available2026-07-07T02:41:17Z
dc.descriptionWe propose a numerical model to study the viscoplastic deformation of ice single crystals. We consider long-range elastic interactions among dislocations, the possibility of mutual annihilation, and a multiplication mechanism representing the activation of Frank-Read sources due to dislocation pinning. The overdamped equations of motion for a collection of dislocations are integrated numerically using different externally applied stresses. Using this approach we analyze the avalanche-like rearrangements of dislocations during the dynamic evolution. We observe a power law distribution of avalanche sizes which we compare with acoustic emission experiments in ice single crystals under creep deformation. We emphasize the connections of our model with non-equilibrium phase transitions and critical phenomena.
dc.identifierhttps://arxiv.org/abs/cond-mat/0105035
dc.identifierhttp://arxiv.org/abs/cond-mat/0105035
dc.identifierMaterials Science and Engineering 309-310, 324 (2001)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17682
dc.subjectStatistical Mechanics
dc.subjectMaterials Science
dc.titleComplexity in dislocation dynamics: model
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