Modeling of contact interaction of elements electromagnetic accelerator

The problem of contact interaction of electromagnetic accelerator barrel elements is solved. Two-dimensional elastic approximation is used. Design area represents one fourth of cross section and includes rail, insulator and power overwrap. To solve the problem, a two-level Schwartz additive method is used, with the help of which the problem in the entire area is reduced to solving a number of local contact problems in the entered sub-areas. The results of two calculations are presented: in the first, friction-free sliding conditions were used on contact surfaces, and in the second, adhesion conditions were used. Comparative analysis of contact surface configuration, maximum displacements and stresses occurring in accelerator barrel for each case was carried out.