Pour débuter l’année 2019, un séminaire scientifique vous est proposé par l’Institut SEISM Paris-Saclay :

« Application of HPC for end-to-end simulations of earthquake disaster »

par Maddegedara Lalith, Associate Professor

à l’Université de Tokyo 

Mercredi 16 janvier 2019 à 14h00 à CentraleSupélec

 
Abstract
It is an old dream to predict and prepare for earthquake disasters, thereby avoiding severe damages to infrastructures, and catastrophic social and economic losses. Can we make this a reality by utilizing the available High Performance Computing (HPC) infrastructures? Current earthquake disaster predictions rely on the statistical analysis of the observations made during several decades old past earthquakes. The progress we have made in material science, design, technology, life style, etc., is so significant that those decades old data cannot be used to reliably predict impending disasters. One way to attain this dream of making more reliable predictions is to utilize cutting edge numerical techniques and high performance computing (HPC). Numerical simulations enable us to take the current state infrastructures, society and economy in to the account and arrive at better predictions, quantitatively evaluate our recovery plans, and even find better recovery plans. In order to increase the reliability of the predictions, not only we have to use high fidelity models with advanced numerical techniques, but also take the uncertainties into account with methods like Monte-Carlo simulations.

With the above in mind, we at LsETD (center for Large scale Earthquake Tsunami and Disaster) are developing an integrated platform called IES to seamlessly simulate the earthquake hazard to human actions. While some of the mechanics based topics like strong ground motion simulations are quite mature, the social oriented simulations have a long way to go. Not only we lack verified and validated numerical methods, but also implementing scalable HPC extensions for social and economic simulations are challenging. I will make a short introduction to several components of IES including large scale strong ground motion simulations, seismic response analysis buildings and pipe networks of large cities, tsunami triggered mass evacuations, and agent based economic simulations, etc. Further, I will present the current state of our research towards simulating super shear earthquake rupture.

Pour vous y rendre
CentraleSupélec
EA.008, Bâtiment Gustave Eiffel, Univers Énergie, Rez-de-chaussée
8/10 Rue Joliot-Curie, 91190 Gif-Sur-Yvette, France.