DocumentCode
1266239
Title
On the stability of the FDTD algorithm for elastic media at a material interface
Author
Schröder, Christoph T. ; Scott, Waymond R., Jr.
Author_Institution
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Volume
40
Issue
2
fYear
2002
fDate
2/1/2002 12:00:00 AM
Firstpage
474
Lastpage
481
Abstract
In this paper, the stability behavior of the first-order finite-difference time-domain algorithm for elastodynamics at the interface between two different materials is investigated. A necessary condition for stability is established, which, dependent on the material properties of the two media, might be more restrictive than the well-known Courant condition. It is shown that this more restrictive stability condition can be avoided if the material properties are averaged on the boundary
Keywords
elasticity; finite difference time-domain analysis; numerical stability; FDTD algorithm; elastic media; first-order finite-difference time-domain algorithm; material interface; necessary condition; stability; Algorithm design and analysis; Difference equations; Differential equations; Elastodynamics; Finite difference methods; Material properties; Partial differential equations; Space technology; Stability analysis; Time domain analysis;
fLanguage
English
Journal_Title
Geoscience and Remote Sensing, IEEE Transactions on
Publisher
ieee
ISSN
0196-2892
Type
jour
DOI
10.1109/36.992813
Filename
992813
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