Models for creep rupture and earthquakes

by Prof. Takahiro Hatano (Osaka University, Japan)

Monday 6 Mar 2023, 14:00 → 15:00 Europe/Rome

1/1-2 - Aula "C. Voci" (Dipartimento di Fisica e Astronomia - Edificio Marzolo)

Creep is a slow plastic deformation process of materials realized 

at stress levels below the yield strength. The time evolution of the strain rate 

under constant stress exhibits three distinct stages. Interestingly, despite the

scale difference, they resemble some power laws observed in geological 

phenomena such as earthquakes and landslides. One may thus wish to find

a common mechanism in materials rupture and geological catastrophic 

phenomena. Here we analyze a simple model for creep failure of disordered 

solids and seek for any connection and implication to earthquakes and landslides.