Numerical simulations of impact on a concrete structure: the researcher's and engineer's point of view
Event details
| Date | 24.02.2011 |
| Hour | 12:15 |
| Speaker | Fabrice Gatuingt, Ecole Normale Supérieure de Cachan |
| Location |
GC C3 30
|
| Category | Conferences - Seminars |
Abstract:
Transient 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 structures 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.
Different approaches can be used to tackle this problem. One could assume that a simplified method based on the Riera's model and a simple 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 could lead to a better description of the physical phenomena that occur during the impact and therefore could help the design optimized structures.
This presentation will show, through experimental data, the behavior of the concrete under this kind of loading and how it affects the constitute equations. In a second part we will focus on the OECD benchmark IRIS_2010 that was used to test the accuracy of the different descriptions and approaches of this kind of problem.
Bio:
Fabrice Gatuingt is an assistant professor in the Civil Engineering Department at the Ecole Normale Supérieure 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 study the numerical methods to represent localized cracks. Before his sabbatical stay in Lausanne he was the head of the Civil Engineering Department. His research activities are mainly centered on the development of concrete constitutive laws for dynamic loading and the numerical methods associated with them.
Practical information
- General public
- Free