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  4. Investigation of properties of contact connector of bimetallic hollow cylinder under the influence of electromagnetic pulse

Investigation of properties of contact connector of bimetallic hollow cylinder under the influence of electromagnetic pulse

MMC.
2018;
Volume 5, Number 2
: 193-200
https://doi.org/10.23939/mmc2018.02.193
Received: November 21, 2018

Math. Model. Comput. Vol. 5, No. 2, pp. 193-200 (2018)

Authors:
  1. R. Musii
  2. N. Melnyk
  3. V. Dmytruk
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

A plane axisymmetric dynamic problem of thermomechanics for a hollow bimetallic cylinder under a uniform non-stationary electromagnetic action is formulated. The numerical analysis of the solution of this problem for a hollow bimetallic cylinder exposed to the influence of electromagnetic pulse is carried out. The graphs of changes in the time of ponderomotive force, temperature, components of the tensor of dynamic stresses and intensity of stresses in the compound layers of a cylinder made of stainless steel and copper are presented. The dependences of the maximal values of the intensities of stresses in the layers of the cylinder on the magnitudes of the intensity of the magnetic field for different pulse durations are established, which allowed stating the permissible loads for the conductive bimetallic hollow cylinder as a contact connector.

the problem of thermomechanics
bimetallic cylinder
bearing capacity
connector
electromagnetic pulse
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