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Nonlinear damage rheology and wave resonance in rocks V. Lyakhovsky1
 

Summary: 1
Nonlinear damage rheology and wave resonance in rocks
V. Lyakhovsky1
, Y. Hamiel1
, P. Ampuero2
, Y. Ben-Zion3
1. Geological Survey of Israel, Jerusalem 95501, Israel (vladi@geos.gsi.gov.il)
2. Seismological Laboratory, California Institute of Technology
(ampuero@gps.caltech.edu)
3. Department of Earth Sciences, University of Southern California Los Angeles, CA,
90089-0740, USA (benzion@usc.edu)
Submitted to Geophys. J. Int., December 2008
In press, 2009
2
Summary
We address various deformational aspects of damaged materials with theoretical
analyses and numerical simulations based on a nonlinear continuum damage model.
Quasi-static simulations of damage accumulation under cyclic load reproduce the
laboratory-observed increase in the difference between tensile and compressive elastic
moduli with ongoing deformation beyond the elastic regime. Modeling of wave

  

Source: Ampuero, Jean Paul - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collections: Geosciences