Paper Title
Burning of a Steel Plate Formed due to Local Temperature Exposure.

Abstract
The paper describes studies of the thermal effect of a gas burner on a steel plate. During this action, a plastic flow appears in the plate material, which generates irreversible deformations that affect lowering the yield strength of the plate material. The softening of the plate material is established empirically in a series of experiments. To describe the softening, a one-dimensional mathematical model is constructed based on the Prandtl-Reis model. The yield strength and elastic moduli are assumed to be temperature-dependent. As a criterion of plastic flow, the Ilinsky-Ivlev condition is adopted, in which the term is introduced, which is responsible for the hardening of the material. Keywords - Temperature Stresses, Spot Heating, Residual Stresses, Elasticity, Ductility, Hardening, ILINSKY-ILEV Condition.