Test of two methods for faulting on finite-difference calculations
Bulletin of the Seismological Society of America
By: D.J. Andrews
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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.
| 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 |
| DOI | 10.1785/BSSA0890040931 |
| Volume | 89 |
| Issue | 4 |
| Publication Date | August 01, 1999 |
| Year Published | 1999 |
| Language | English |
| Publisher | Seismological Society of America |
| Description | 7 p. |
| First page | 931 |
| Last page | 937 |