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SUMMARY:A dynamic discrete dislocation plasticity study of plastic relaxat
 ion phenomena in shock loading - Beñat Gurrutxaga-Lerma\, Imperial Colleg
 e\, London
DTSTART:20151015T150000Z
DTEND:20151015T160000Z
UID:TALK59938@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:Dynamic Discrete Dislocation Plasticity (D3P) simulates plasti
 city as a result of the collective motion of individual dislocations. Disl
 ocations are modelled as discontinuities in a elastodynamic continuum\, so
  unlike traditional discrete dislocation methods\, time is included as a t
 rue field variable\, and dislocations are described as sources of elastody
 namic wavelets emanating from their cores. This introduces a new dimension
  to the classical study of dislocation-mediated phenomena. By studying the
  collective response of the dislocations in shocked systems under varied b
 oundary conditions we are able to study in detail the effect dislocations 
 have on phenomena ranging from the elastic precursor’s decay to plastic 
 shielding of dynamic crack tips.
LOCATION:Mott Seminar Room\, Cavendish Laboratory
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