2010/06/09 by Massimo Pica Ciamarra, M. Pica Ciamarra, Eugenio Lippiello +3 · 45 citations
Earth and Planetary Sciences · Physics and Astronomy · #Composite material #Creep #Dynamics (music) #Earthquake Detection and Analysis #Fault (geology) #Geology #High-pressure geophysics and materials #Materials science #Mechanics #Micromechanics #Molecular dynamics #Physics #Seismology #Slip (aerodynamics) #cond-mat.soft #earthquake and tectonic studies
paper · pdf · doi:10.1103/physrevlett.104.238001
published in Physical Review Letters 104(23), 238001 (American Physical Society) · See http://prl.aps.org/supplemental/PRL/v104/i23/e238001 for related animations
openalex publication_date 2010/06/09 · arxiv created 2011/06/10 · arxiv updated 2015/03/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The unjamming transition of granular systems is investigated in a seismic fault model via three dimensional molecular dynamics simulations. A two-time force-force correlation function, and a susceptibility related to the system response to pressure changes, allow us to characterize the stick-slip dynamics, consisting in large slips and microslips leading to creep motion. The correlation function unveils the micromechanical changes occurring both during microslips and slips. The susceptibility encodes the magnitude of the incoming microslip.