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TZID:Europe/Paris
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UID:1-175@lptms.universite-paris-saclay.fr
DTSTART:20130919T140000Z
DTEND:20130919T150000Z
DTSTAMP:20130917T083727Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-excepti
 onnel-du-lptms-srikanth-h-sastry/
SUMMARY:Séminaire exceptionnel du LPTMS: Srikanth H. Sastry - LPTMS\, sall
 e 201\, 2ème étage\, Bât 100\, Campus d'Orsay - 19 Sep 13 14:00
DESCRIPTION:Dynamical transition and memory in cyclically deformed amorphou
 s solids\nSrikanth H. Sastry (TIFR Centre for Interdisciplinary Sciences\,
  Hyderabad)\nAmorphous solids are microscopically disordered materials tha
 t arise in diverse contexts\, with polymeric glasses and soft glassy mater
 ials like gels and metallic glasses being some typical examples. The mecha
 nical response of amorphous solids is distinct in microscopic detail from 
 that of crystalline solids\, and is of practical interest because of the r
 elevance of the elastic and plastic response and rheology of these substan
 ces to a variety of processes and applications. A computational investigat
 ion of the response of a model amorphous solid to oscillatory deformation 
 is presented\, after a brief overview of current approaches to understandi
 ng mechanical response of amorphous solids. A dynamical transition is obse
 rved as the amplitude of the deformation is varied: For large values of th
 e amplitude the system exhibits diffusive behavior and loss of memory of t
 he initial conditions\, whereas localization is observed for small amplitu
 des. The formation of memory in such systems of single and multiple inputs
  is also described.
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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