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SUMMARY:Slow Rupture of Frictional Interfaces
DTSTART:20120521T140000
DTEND:20120521T150000
DTSTAMP:20260530T213439Z
UID:0c90fdb855c9dcc7c53819919838c8379ba32228d34ed42da818d680
CATEGORIES:Conferences - Seminars
DESCRIPTION:Eran Bouchbinder\, Weizmann Institute of Science\, Israel\nThe
  failure of interfaces between bodies in frictional contact is central to 
 a wide range of engineering\, physical and geophysical systems\, ranging f
 rom micro-electro-mechanical systems (MEMS) to earthquake faults. Failure 
 is commonly viewed as an abrupt process in which large amount of energy is
  rapidly released by the propagation of fast\, earthquake-like\, rupture. 
 Recent geophysical and laboratory observations indicated\, however\, that 
 interfacial failure can in fact be mediated by slow rupture which is disti
 nct from ordinary fast rupture.\n\nYet\, the nature and properties of slow
  rupture are not fully understood. In this talk I will propose that slow r
 upture is an intrinsic and robust property of simple friction laws. It is 
 associated with a new velocity scale c_min\, intrinsically determined by t
 he friction law\, below which steady state rupture cannot propagate. Ruptu
 re is shown to occur in a continuum of states\, spanning a wide range of v
 elocities from c_min to elastic wave-speeds\, with different properties fo
 r slow and common fast rupture. These results qualitatively agree with rec
 ent laboratory measurements and might provide a theoretical framework for 
 understanding slow rupture phenomena along frictional interfaces.\n\nBiogr
 aphy\n\nDr. Bouchbinder received his PhD in theoretical physics (with Prof
 . Itamar Procaccia) from the Weizmann Institute of Science in 2007. He the
 n moved to the Racah institute of physics\, Hebrew University of Jerusalem
 \, as a postdoctoral fellow with Prof. Jay Fineberg. Since November 2009 h
 e is a faculty member at the Weizmann Institute of Science.\n\nHis researc
 h focuses on the theory of non-equilibrium phenomena in condensed matter p
 hysics\, materials science and solid mechanics. These include: dynamic fra
 cture\, sliding friction\, dislocation-mediated plasticity\, glass physics
 \, amorphous plasticity\, non-equilibrium thermodynamics and biomechanics.
LOCATION:ENAC\, GC A3 30 http://plan.epfl.ch/?zoom=20&recenter_y=5864175.1
 1538&recenter_x=731009.66423&layerNodes=fonds\,batiments\,labels\,informat
 ion\,parkings_publics\,arrets_metro&floor=3&q=GC_A3%2030
STATUS:CONFIRMED
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