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SUMMARY:MEchanics GAthering -MEGA- Seminar: Numerical modeling and physica
 l aspects of the frictional interfaces governed by the rate and state depe
 ndent friction law
DTSTART:20190509T161500
DTEND:20190509T173000
DTSTAMP:20260407T111953Z
UID:6a8d4ab1d1c8416e376712160a5a239c35455fb7e06b445c29e9e299
CATEGORIES:Conferences - Seminars
DESCRIPTION:Fabian Barras and Roozbeh Rezakhani\, LSMS\, EPFL\nAbstract
  This edition of the MEGA.Seminar will be dedicated to the modeling of fr
 iction and particularly to the rate-and-state dependent models. This ter
 minology describes a class of empirical friction laws derived in the eight
 ies to describe the slight variations of the frictional force observed in 
 experiments. These subtle variations of the friction coefficient allowed t
 o rationalize important aspects of frictional systems\, including the stic
 k-slip instabilities or the nucleation of earthquakes along crustal faults
 . Consequently\, rate-and-state friction laws received a significant atten
 tion in the past decades. Nevertheless these models still pose important s
 cientific challenges\, notably the question of the underlying physics behi
 nd their phenomenological approach and their stability for numerical model
 ing. This session will hence consist of two parts: \nIn the first part\, 
 the numerical procedures and stability of the methods for modeling rate-
 and-state friction will be presented.\nIn the second part\, we will disc
 uss the physics-based interpretation of these empirical models and how we 
 can use it to rationalize the rupture dynamics computed with rate-and-stat
 e friction laws. This part culminates by discussing some important implica
 tions for the energy budget of earthquake ruptures. Numerical modeling of
  laboratory experiments of rupture propagation on geologic faults will be
  also discussed. 
LOCATION:MED 2 2423 https://plan.epfl.ch/?room=MED22423
STATUS:CONFIRMED
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