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SUMMARY:Numerical simulations of impact on a concrete structure: the resea
 rcher's and engineer's point of view
DTSTART:20110224T121500
DTSTAMP:20260506T192923Z
UID:e960455e42ba872f682ec12fe46fb5ffcef9ded6af9bba88dac9bbc9
CATEGORIES:Conferences - Seminars
DESCRIPTION:Fabrice Gatuingt\, Ecole Normale Supérieure de Cachan\nAbstra
 ct: \nTransient loading has always been an important feature to take into 
 account for the design of concrete structures. This transient loading can 
 be due to an explosion\, a mine blast or an accidental collision of cars\,
  trains or airplanes with the structure (since the 9/11 events commercial 
 airplanes have also to be taken into account). In particular for structure
 s that involve public safety\, they have to be designed to resist not only
  the static loading but also the dynamic loading produced by these extreme
  conditions.\nDifferent approaches can be used to tackle this problem. One
  could assume that a simplified method based on the Riera's model and a si
 mple description of the structure\, which has proved its efficiency in the
  past\, is always able to describe this new type of loading. On the other 
 hand\, engineers could postulate that the current numerical capabilities c
 ould lead to a better description of the physical phenomena that occur dur
 ing the impact and therefore could help the design optimized structures.\n
 \nThis presentation will show\, through experimental data\, the behavior o
 f the concrete under this kind of loading and how it affects the constitut
 e equations. In a second part we will focus on the OECD benchmark IRIS_201
 0 that was used to test the accuracy of the different descriptions and app
 roaches of this kind of problem.\n\nBio:\nFabrice Gatuingt is an assistant
  professor in the Civil Engineering Department at the Ecole Normale Supér
 ieure de Cachan. He obtained in 1999 a PhD in Civil Engineering at the LMT
  Cachan. In 2000\, he held a post-doctoral position at the CEA Saclay to s
 tudy the numerical methods to represent  localized cracks. Before his sabb
 atical stay in Lausanne he was the head of the Civil Engineering Departmen
 t. His research activities are mainly centered on the development of concr
 ete constitutive laws for dynamic loading and the numerical methods associ
 ated with them.
LOCATION:GC C3 30
STATUS:CONFIRMED
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