Off-fault plasticity favors the arrest of dynamic ruptures on strength heterogeneity : Two-dimensional cases

Sébastien Hok 1 Michel Campillo 1 Fabrice Cotton 1 Pascal Favreau 2 Ioan Ionescu 3
1 LGIT - Laboratoire de Géophysique Interne et Tectonophysique
2 IPGP - Institut de Physique du Globe de Paris
3 LAMA - Laboratoire d'Analyse et de Mathématiques Appliquées
Abstract : We study the effects of a plastic behavior of the volume around the fault on in-plane and anti-plane 2D rupture dynamics. Both rupture modes exhibit similar answer to off-fault yielding, in terms of modification of the kinematics of the rupture front, and in terms of energy lost outside the fault plane. We then compare the ability of the rupture to propagate through a barrier on the interface. The plastic behavior, responsible for a linear increase of the global fracture energy during dynamic crack growth, enhances the rupture front sensitivity to a static resistance increase on the fault. Consequently, the rupture arrest is more easily provoked in heterogeneous models that include a plastic yielding, even with relatively small variations of frictional resistance along the fault plane.
Document type :
Journal articles
Complete list of metadatas

Cited literature [20 references]  Display  Hide  Download
https://hal-irsn.archives-ouvertes.fr/irsn-01314589
Contributor : Sébastien Hok <>
Submitted on : Friday, November 3, 2017 - 5:07:09 PM
Last modification on : Friday, October 4, 2019 - 1:20:59 AM
Long-term archiving on : Sunday, February 4, 2018 - 2:36:52 PM

File

Hok_et_al-2010-Geophysical_Res...
Publisher files allowed on an open archive

Identifiers

Collections

INSU | IPGP | IFSTTAR | ISTERRE | UGA | UPEC-UPEM | UNIV-SAVOIE | USPC | IRSN | OSUG | IRD | UNIV-PARIS7 | IRSTEA | UPEC

Citation

Sébastien Hok, Michel Campillo, Fabrice Cotton, Pascal Favreau, Ioan Ionescu. Off-fault plasticity favors the arrest of dynamic ruptures on strength heterogeneity : Two-dimensional cases. Geophysical Research Letters, American Geophysical Union, 2010, 37 (2), pp.L02306. ⟨10.1029/2009GL041888⟩. ⟨irsn-01314589⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

552

Files downloads

408

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD