Calculation of the differential rotation of a rigid core in hypoplastic media under complex loading

The plane problem of calculating the directional transfer of internal masses and the differential rotation of an internal rigid core is considered for hypoplastic media with continuous rotation of the principal axes of the strain tensor under complex loading. The hypoplastic model of granular media with internal variables is used as the basic model. A numerical algorithm for calculating stress and velocity fields in an inelastic medium under complex loading is developed using the finite-element method. Mechanical trajectories of material points of the medium are calculated and the rotational velocity of the core and the reduction coefficient are estimated.