Browsing by Author "Pagneux, Vincent"

Now showing items 1-6 of 6

    • Interaction of a surface wave with a dislocation 
      Maurel, Agnès; Pagneux, Vincent; Barra de la Guarda, Felipe; Lund Plantat, Fernando (2007)
      The scattering of a surface wave by a pinned edge dislocation in a semi-infinite, homogeneous, isotropic, three-dimensional elastic solid is investigated analytically and numerically. An incident wave excites the dislocation ...
    • Multiple scattering of elastic waves by pinned dislocation segments in a continuum 
      Churochkin, Dmitry; Barra de la Guarda, Felipe; Lund Plantat, Fernando; Maurel, Agnes; Pagneux, Vincent (Elsevier, 2016)
      The coherent propagation of elastic waves in a solid lled with a random distribution of pinned dislocation segments is studied to all orders in perturbation theory. It is shown that, within the independent scattering ...
    • 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 ...
    • Surface acoustic waves in interaction with a dislocation 
      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 ...
    • The diffusive transport of waves in a periodic waveguide 
      Barra de la Guarda, Felipe; Zúñiga, Jaime; Pagneux, Vincent (AMER PHYSICAL SOC, 2012-01-19)
      We study the propagation of waves in quasi-one-dimensional finite periodic systems whose classical (ray) dynamics is diffusive. By considering a random matrix model for a chain of L identical chaotic cavities, we show that ...
    • The Use of Ultrasound to Measure Dislocation Density 
      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 ...