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Visiting Researchers

Osvanny RAMOS
Dr. osvanny
Université Claude Bernard Lyon 1
Associate professor
Period of Stay
2017/7/11 - 8/7
Research Theme
Modeling of aftershock-like phenomena in subcritical crack growth
Host Researcher
Takahiro HATANO
Self Introduction

I’m an associated professor of Physics at the University of Lyon 1 in France. In our group we create simplified and small-scale experiments trying to better understand the dynamics of avalanche-like phenomena showing a scale-invariant behaviour. In other words, processes where the energy is accumulated very slowly and liberated by sudden events with a large (power law) distribution of sizes. Earthquakes are the best-known example of these phenomena. However, relative simple experiments (subcritical fracture and frictional granular shear) also share a similar dynamics. Could they help us to better understand the earthquake dynamics? Simple simulations and modelling complement our experimental work.

During my stay at ERI, invited by Prof. Takahiro Hatano, we will work on numerical and analytical models that aim at explaining the dynamics of scale-invariant processes, and in particular on the influence of dissipation, where there is a clear gap between models and experiments. Besides this main task, improving my culture about earthquakes is a must in our quest for developing experiments and models that capture their dynamics, so I am very open for discussions.

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