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Discrete Element Modeling of a fault reveals that viscous rolling relaxation controls friction weakening
  • Alexandre Sac-Morane,
  • Hadrien Rattez,
  • Manolis Veveakis
Alexandre Sac-Morane
Duke University
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Hadrien Rattez
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Manolis Veveakis
Duke University

Corresponding Author:manolis.veveakis@duke.edu

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In this paper, the effect of the rolling and damping values on the macro friction coefficient have been investigated. The introduction of the viscous rolling relaxation induces a friction weakening. Hence, it has been highlighted that this element can act against the angular spring and decreases the sample stiffness. This influence must be considered to not overestimate the toughness of a fault.