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Authors: Cocco, M.*
Bizzarri, A.*
Title: On the slip-weakening behavior of rate- and state-dependent constitutive laws
Title of journal: Geophysical Research Letters
Series/Report no.: 11/29(2002)
Publisher: American Geophysical Union
Issue Date: 8-Jun-2002
DOI: 10.1029/2001GL013999
Keywords: Earthquake dynamics and mechanics
Earthquake parameters
Abstract: We study the dynamic traction behavior within the cohesive zone during the propagation of earthquake ruptures adopting rate and state dependent constitutive relations. The resulting slip weakening curve displays an equivalent slip weakening distance (D0_eq), which is different from the parameter L controlling the state variable evolution. The adopted constitutive parameters (a, b, L) control the slip weakening behavior and the absorbed fracture energy. The dimension of the nucleation patch scales with L and not with D0_eq. We propose a scaling relation between these two lengthscale parameters which prescribes that D0_eq/L ~ 15.
Appears in Collections:Manuscripts
04.06.03. Earthquake source and dynamics
Papers Published / Papers in press
Papers Published / Papers in press

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