Browsing by Author "201-0116798"
Now showing items 21-29 of 29
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Lund Plantat, Fernando (Amer Phisical Soc, 2015)The normal modes of a continuum solid endowed with a random distribution of line defects that behave like elastic strings are described. These strings interact with elastic waves in the bulk, generating wave dispersion and ...
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Sepúlveda Macías, Matías; Gutiérrez Gallardo, Gonzalo; Lund Plantat, Fernando (IOP, 2020)We deform, in pure shear, a thin sample of Cu50Zr50 metallic glass using a molecular dynamics simulation up to, and including, failure. The experiment is repeated ten times in order to have average values and standard ...
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Propagation of elastic waves through polycrystals: the effects of scattering from dislocation arrays Maurel, Agnès; Pagneux, Vincent; Boyer, Denis; Lund Plantat, Fernando (ROYAL SOCIETY, 2006-09-08)We address the problem of an elastic wave coherently propagating through a two-dimensional polycrystal. The main source of scattering is taken to be the interaction with grain boundaries that are in turn modelled as line ...
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Maurel, Agnès; Lund Plantat, Fernando; Montagnat, Maurine (Royal Society Publishing, 2015)The propagation of elastic waves in polycrystals is revisited, with an emphasis on configurations relevant to the study of ice. Randomly oriented hexagonal single crystals are considered with specific, nonuniform, probability ...
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Barra de la Guarda, Felipe; Lund Plantat, Fernando; Mujica Fernández, Nicolás; Rica, Sergio (AMER PHYSICAL SOC, 2012-02-07)The energy of a dislocation loop in a continuum elastic solid under pressure is considered within the framework of classical mechanics. For a circular loop, this is a function with a maximum at pressures that are well ...
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Asenjo Andrews, Daniel Arthur (Universidad de Chile, 2009)Se estudió un sistema de 3,6864×104 partículas que interactúan a través del potencial de Lennard-Jones mediante dinámica molecular, usando un código paralelo que integra las ecuaciones de movimiento diseñadas para simular ...
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Maurel, Agnès; Pagneux, Vincent; Barra de la Guarda, Felipe; Lund Plantat, Fernando (ELSEVIER, 2010)A surface acoustic wave can interact with dislocations that are close to the surface. We characterize this interaction and its manifestations as scattered surface acoustic waves for different orientations with respect ...
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Lund Plantat, Fernando; Scheihing Hitschfeld, Bruno (MDPI, 2020)A canonical quantization procedure is applied to the interaction of elastic waves-phonons-with infinitely long dislocations that can oscillate about an equilibrium, straight line, configuration. The interaction is implemented ...
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Barra de la Guarda, Felipe; Espinoza González, Rodrigo; Fernández, Henry; Lund Plantat, Fernando; Maurel, Agnès; Pagneux, Vincent (The Minerals, Metals & Materials Society, 2015)Dislocations are at the heart of the plastic behavior of materials yet they are very difficult to probe experimentally. Lack of a practical nonintrusive measuring tool for, say, dislocation density, seriously hampers ...