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Modeling of multimaterial interfaces in the finite difference method

✍ Scribed by J. O. Dow; J. L. Hardaway

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
604 KB
Volume
8
Category
Article
ISSN
0749-159X

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✦ Synopsis

This work develops a procedure for representing multimaterial interfaces in finite difference models. The boundary separating the two materials can be on or between a row of nodes. The development is validated by embedding the boundary between two regions in a single, larger region and comparing the results. The development is facilitated by the use of a physically based notation that represents the displacement approximations in terms of rigid-body rotations and strain gradient quantities that produce the displacements. Four example problems are presented.

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