Abstract
The mechanical action of the rods is the most typical and diverse type of their interaction with the barrier. This variety is associated with those physical phenomena that occur during penetration of the barrier rod, for example, destruction of the penetrating rod, formation of a secondary stream of fragments from the barrier material, etc. The article is devoted to the development of a methodology for calculating the piercing action of a finite thickness barrier with a rod. The main stages of the barrier penetration process are considered. The model contains three stages: implementation, penetration and plug formation. Design dependencies at the main stages of penetration of the final thickness barrier by the rod are given. To compare theoretical developments, to assess their convergence with experience, the results of experimental studies are presented, which show satisfactory accuracy of calculations with experience.