Сериальное издание: AIP Conference Proceedings. Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Tomsk, Russia, 1-5 October 2019)
Страницы: 020349-020349
Аннотация
The paper presents the results of numerical 3D modeling of deformation of cylindrical rock specimens under pseudo-triaxial loading. A comparison is made between the calculated and experimental loading diagrams at different lateral compression pressures. It is shown that, at the appropriately chosen model parameters and with consideration for changes in the parameters during irreversible deformation, the proposed variant of the Drucker-Prager model with the nonassociated flow rule allows an accurate description of the rock behavior in a wide range of loads. Account for the nonlinearity of elastic properties at low pressure significantly reduces the divergence between the theoretical and experimental loading curves.
