On finite displacement of an elastoviscoplastic material in a~gap between two rigid coaxial cylindrical surfaces

L. V. Kovtanyuk ; G. L. Panchenko

Sibirskij žurnal industrialʹnoj matematiki, Tome 21 (2018) no. 1, pp. 21-34.

Résumé

In the framework of the theory of large deformations, we obtain the solution of a boundary value problem on the flow of an elastoviscoplastic material in a gap between two rigid coaxial cylindrical surfaces under pressure drop changing with time. It is assumed that slip of the material is possible on both surfaces. We consider reversible deformation, the development of viscoplastic flow under the increasing and constant pressure drop, deceleration of the flow under the decreasing pressure drop, and the unloading of the medium.

Détail

Keywords: large deformation, viscosity, plasticity, elasticity.

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