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Test of two methods for faulting on finite-difference calculations

Bulletin of the Seismological Society of America

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Abstract

Tests of two fault boundary conditions show that each converges with second order accuracy as the finite-difference grid is refined. The first method uses split nodes so that there are disjoint grids that interact via surface traction. The 3D version described here is a generalization of a method I have used extensively in 2D; it is as accurate as the 2D version. The second method represents fault slip as inelastic strain in a fault zone. Offset of stress from its elastic value is seismic moment density. Implementation of this method is quite simple in a finite-difference scheme using velocity and stress as dependent variables.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Test of two methods for faulting on finite-difference calculations
Series title:
Bulletin of the Seismological Society of America
Volume
89
Issue:
4
Year Published:
1999
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
931
Last page:
937
Number of Pages:
7