The selection of the class of mechanical deformation model for description of the discrete medium

Розглянуто визначальні співвідношення моделей механіки твердого деформівного тіла, які принципово можуть описати специфічні особливості деформування дискретних матеріалів. Проведений аналіз дозволяє вибрати найбільш перспективний напрямок досліджень щодо побудови моделі дискретного середовища.To develop a mechanical model of a discrete environment it is necessary to conduct analysis of existing models and choose the most effective line of research .Summarizing the results of experimental and theoretical studies , we can conclude that the mechanical model of a discrete environment necessarily should reflect its effect on the behaviour of two specific interrelated factors: internal Coulomb friction and dilatation . A model of granular environment; limit equilibrium models of loose environment, static models of loose environment are considered in the paper. Also the author describes soil mechanics models, taking into account the effect of internal friction, deformation theory of plasticity model type, dilatation model of plastic flow and others. The analysis of the mechanical models, given in the article, suggests that the most promising way of description of the behaviour of discrete environments under external load is a class of models of soil mechanics of plastic flow