BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Applications of subdomain coupling methods to structural dynamics 
 and multiphysics
DTSTART:20171201T121500
DTEND:20171201T131500
DTSTAMP:20260602T184301Z
UID:da4159e21e6eb868fa2377d9502053160d24594c659063107760b62f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Dr Michael Brun\, INSA-Lyon\, Lyon\, France\nAbstract: T
 he increasing complexity of numerical models for engineering systems\, tak
 ing into account ever finer mesh\, accurate material models and multiphysi
 cs phenomena occurring at very different space and time scales\, boosted t
 he development of partitioning approaches. In the field of structural dyna
 mics\, the main interest of the partitioning approach is to increase compu
 tational efficiency by using different time integrators with their own tim
 e step\, depending on the non-overlapping subdomains composing the global 
 mesh. First\, subdomain coupling methods have been set up\, following an e
 nergy-based argument\, leading to the proposition of Hybrid Asynchronous T
 ime Integrator (HATI)\, stable and second or first order accurate dependin
 g on the ratio between the time scales. A large variety of applications of
  the HATI is then presented in the fields of structural dynamics and multi
 physics: reinforced concrete subjected to earthquake or blast loading\, cr
 ane bridge under earthquake loading experiencing non smooth dynamics pheno
 mena (large number of impacts)\, soil structure interaction problem by int
 roducing Perfectly Matched Layers (PML) in the HATI framework for reproduc
 ing unbounded domains\, coupling a wave propagation software in soils\, ba
 sed on Spectral Element Method (SEM)\, with a FEM software for the structu
 re\, fluid structure interaction problem with the coupling of a water jet\
 , modeled with Smooth Particle Hydrodynamics (SPH) method\, impacting a FE
 M modeled hydroelectric turbine’s steel bucket. The last application dev
 eloped within LSMS laboratory\, EPFL\, concerns the simulation of a sudden
  rock sliding contact along a seismic fault\, involving HATI\, contact and
  friction algorithms as well as PML.   \n \nBio: Dr Michael BRUN is an 
 associate professor at INSA-Lyon\, in civil engineering laboratory GEOMAS.
  His research interests are focused on computational science in dynamics\,
  applied to civil engineering structures and multiphysics coupling problem
 s such as soil-structure and fluid-structure interactions.  He got his Ph
 D at INSA-Lyon in 2002 and worked during three years as an engineer in a p
 rivate company (EC2-Modélisation\, Lyon) specialized in simulations and s
 oftware development. Since 2005\, he has joined INSA-Lyon where he holds t
 he position of Associate Professor\, teaching continuum mechanics\, streng
 th of materials and numerical methods in the civil engineering and urban p
 lanning Department of INSA-Lyon.\n 
LOCATION:GC C3 30 https://plan.epfl.ch/?room=GCC330
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR