SUDDEN LOADING OF AN ELASTOPLASTIC ROD INTERACTING WITH THE ENVIRONMENT
A. BegmatovNational University of Uzbekistan, 100174, Tashkent, UzbekistanNigora MamatovaNational University of Uzbekistan, 100174, Tashkent, Uzbekistan
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Abstract
The effect of external dry friction on the stress–strain state of a semi-infinite elastoplastic rod under sudden loading is under study. It is assumed that the behavior of the rod is described by the Prandtl model, and friction with the environment moving at a constant velocity occurs according to the Coulomb law with different values of the friction coefficient in the perturbed and unperturbed regions of the rod. Analytical solutions are obtained. The conditions under which the rod is an elastic body in a region (part of it) between the plastic and elastic wave fronts are determined.
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