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Authors: Cannelli, V.*
Melini, D.*
Piersanti, A.*
Title: Post-seismic stress relaxation with a linear transient rheology
Title of journal: Annals of Geophysics
Series/Report no.: 2/53 (2010)
Issue Date: Apr-2010
DOI: 10.4401/ag-4642
Keywords: Transient rheology
Stress tensor
Coulomb failure function
Post-seismic relaxation
Abstract: We performed an analysis of post-seismic stress relaxation, taking into account generalized linear rheologies. We compared the stress field (and its derived functions) obtained with a classical Maxwell rheology with that obtained with a transient Burgers body. From a set of synthetic case studies, we have revealed quantitative and qualitative differences both in relaxation times and in local stress values when a transient rheology is introduced. As a practical application, we modeled the time evolution of the Coulomb failure function following the 2009 L'Aquila earthquake, and we show that a transient rheology can lead to non-monotonic time dependence.
Appears in Collections:04.07.99. General or miscellaneous
Papers Published / Papers in press

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