Skip to main content

Effects of Induced Stress on Seismic Waves: Validation Based on Ab Initio Calculations

Author(s): Tromp, Jeroen; Marcondes, Michel L; Wentzcovitch, Renata MM; Trampert, Jeannot

To refer to this page use:
Abstract: When a continuum is subjected to an induced stress, the equations that govern seismic wave propagation are modified in two ways. First, the equation of conservation of linear momentum gains terms related to the induced deviatoric stress, and, second, the elastic constitutive relationship acquires terms linear in the induced stress. This continuum mechanics theory makes testable predictions with regard to stress‐induced changes in the elastic tensor. Specifically, it predicts that induced compression linearly affects the prestressed moduli with a slope determined by their local adiabatic pressure derivatives and that induced deviatoric stress produces anisotropic compressional and shear wave speeds. In this article we successfully compare such predictions against ab initio mineral physics calculations for NaCl and MgO.
Publication Date: 10-Jan-2019
Citation: Tromp, Jeroen, Michel L. Marcondes, Renata M.M. Wentzcovitch, and Jeannot Trampert. "Effects of induced stress on seismic waves: Validation based on ab initio calculations." Journal of Geophysical Research: Solid Earth 124, no. 1 (2019): 729-741. doi:10.1029/2018jb016778.
DOI: doi:10.1029/2018jb016778
ISSN: 2169-9313
EISSN: 2169-9356
Pages: 729 - 741
Language: eng
Type of Material: Journal Article
Journal/Proceeding Title: Journal of Geophysical Research: Solid Earth
Version: Final published version. This is an open access article.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.