In the present paper, a mechanical pressure control algorithm, provided that the deformation of the system do not change (independent control). Management is carried out by means of inelastic deformations, which include thermal and piezoelectric strain, deformation phase transitions, etc. Control parameters (for example, the temperature of the system or the electric field) associated with the topological features of the creation of the corresponding inelastic deformations. This connection is necessary, especially in the study of the properties of inelastic deformation of composite structures. Further, taking into account the prepared output ratio, which allows to realize the optimal stress state of the system.