Mathematical Modeling of Thermoelastic Behavior of Multilayer Electroconductive Cylindrical Bodies Under Electromagnetic Pulses

A physical and mathematical model is proposed to study the thermal stress state, performance, and properties of the contact connection of multilayer electroconductive hollow cylinder under nonstationary electromagnetic field. The problem of thermomechanics is stated and the determining functions (the axial component of the magnetic field strength vector, temperature, and radial displacements) are found using a polynomial approximation of their distributions along the radial coordinate in each constituent layer of the cylinder. The thermomechanical behavior, performance, and properties of the contact connection of a two-layer electroconductive hollow cylinder under an electromagnetic pulse are analyzed numerically.