Geodesic
Explicit-implicit schemes for calculating the dynamics of layered media with nonlinear conditions at contact boundaries
Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 14 (2021) no. 6, pp. 768-778.

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In this paper we consider the problem of dynamic loading of a deformable solid medium containing slip planes with nonlinear slip conditions on them. An explicit-implicit scheme was constructed for the numerical solution of the constitutive system of equations, which exactly reduces to correcting the stress tensor values after performing the elastic step. An implicit approximation of the constitutive relations containing a small parameter in the denominator of the nonlinear free term was used with the second order of the approximation. The correction procedure is applicable for those cases when the viscosity parameter of interlayers providing the sliding mode of the contact boundaries is not small. The solution of the problem of the seismic waves propagation in an inhomogeneous fractured geological massif in a two-dimensional case was obtained numerically.
Keywords: layered media, fractured media, numerical simulation, grid-characteristic method, slip conditions.
Mots-clés : explicit-implicit method 
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Ilia S. Nikitin; Vasily I. Golubev. Explicit-implicit schemes for calculating the dynamics of layered media with nonlinear conditions at contact boundaries. Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 14 (2021) no. 6, pp. 768-778. http://geodesic.mathdoc.fr/item/JSFU_2021_14_6_a9/

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