Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7010
DC Field | Value | Language |
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dc.contributor.authorall | Bizzarri, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
dc.date.accessioned | 2011-05-27T08:11:56Z | en |
dc.date.available | 2011-05-27T08:11:56Z | en |
dc.date.issued | 2011-06 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7010 | en |
dc.description.abstract | A rate- and state-dependent governing law with temperature-dependent constitutive parameters is considered on the basis of laboratory inferences. We model the whole seismic cycle of a homogeneous fault obeying to such a law by adopting a spring-slider dashpot fault analog model. We show that the variations of the parameter a (accounting for the so-called direct effect) with the temperature cause the system to enter, at high speeds, in a conditionally stable regime and also in a velocity strengthening regime. Although we do not observe the complete cessation of slip we can see a severe reduction of the degree of the instability of the fault. In particular, the peaks of the sliding velocity are reduced, as well as the developed temperature due to frictional sliding and the released stress during each instability event. Moreover, the recurrence times are reduced of a factor of two with respect to a reference configuration, where the canonical formulation of rate and state friction (with temporally constant parameters) is assumed. The obtained results can help the interpretation of high velocities laboratory experiments and further illuminate the importance of the temperature in the context of seismic hazard assessment. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Earth and Planetary Science Letters | en |
dc.relation.ispartofseries | /306(2011) | en |
dc.subject | Dynamic modeling | en |
dc.subject | Temperature filed | en |
dc.title | Temperature variations of constitutive parameters can significantly affect the fault dynamics | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 272-278 | en |
dc.identifier.URL | http://www.bo.ingv.it/~bizzarri | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics | en |
dc.identifier.doi | 10.1016/j.epsl.2011.04.009 | en |
dc.description.obiettivoSpecifico | 3.1. Fisica dei terremoti | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Bizzarri, A. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
crisitem.author.orcid | 0000-0001-8313-4124 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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Paper 29 3.pdf | 1.24 MB | Adobe PDF |
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