Journal
ACTA MECHANICA
Volume 223, Issue 3, Pages 593-607Publisher
SPRINGER WIEN
DOI: 10.1007/s00707-011-0583-y
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Funding
- German Research Foundation (DFG) [FOR 1136]
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The paper presents exact non-reflecting boundary conditions for transient plane waves in an anisotropic elastic solid for oblique incidence. The boundary conditions are expressed through the eigenvectors of the acoustic tensor and are written in impedance form as a relation between the velocity vector and the traction vector. The approach is extended to anisotropic fluid-saturated porous solids. Exact plane-wave non-reflecting boundary conditions are derived for transient non-dissipative waves in a medium with infinite or zero permeability, and for steady-state dissipative waves.
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