Particle displacements in the elastic deformation of amorphous materials: local fluctuations vs. non-affine field

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dc.creatorGoldenberg, C.
dc.creatorTanguy, A.
dc.creatorBarrat, J. -L.
dc.date2006-10-18
dc.date2007-09-15
dc.date.accessioned2026-07-07T08:29:24Z
dc.date.available2026-07-07T08:29:24Z
dc.descriptionWe study the local disorder in the deformation of amorphous materials by decomposing the particle displacements into a continuous, inhomogeneous field and the corresponding fluctuations. We compare these fields to the commonly used non-affine displacements in an elastically deformed 2D Lennard-Jones glass. Unlike the non-affine field, the fluctuations are very localized, and exhibit a much smaller (and system size independent) correlation length, on the order of a particle diameter, supporting the applicability of the notion of local "defects" to such materials. We propose a scalar "noise" field to characterize the fluctuations, as an additional field for extended continuum models, e.g., to describe the localized irreversible events observed during plastic deformation.
dc.descriptionMinor corrections to match the published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0610518
dc.identifierhttp://arxiv.org/abs/cond-mat/0610518
dc.identifierEurophysics Letters 80, 16003 (2007)
dc.identifierdoi:10.1209/0295-5075/80/16003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137954
dc.subjectStatistical Mechanics
dc.subjectDisordered Systems and Neural Networks
dc.subjectMaterials Science
dc.titleParticle displacements in the elastic deformation of amorphous materials: local fluctuations vs. non-affine field
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