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  4. Temperature stresses in a rectangular two-layer plate under the action of a locally distributed temperature field

Temperature stresses in a rectangular two-layer plate under the action of a locally distributed temperature field

MMC.
2023;
Volume 10, Number 2
: pp. 435–444
https://doi.org/10.23939/mmc2023.02.435
Received: October 26, 2022
Revised: April 21, 2023
Accepted: May 15, 2023

Mathematical Modeling and Computing, Vol. 10, No. 2, pp. 435–444 (2023)

Authors:
  1. R. S. Musii
  2. U. V. Zhydyk
  3. Kh. T. Drohomyretska
  4. I. H. Svidrak
  5. V. K. Shynder
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University
4
Lviv Polytechnic National University
5
Lviv Polytechnic National University

A rectangular isotropic two-layer plate of an irregular structure is considered, the edges of which are freely supported, and a constant temperature is maintained on them.  Two-dimensional Kirchhoff-type thermoelasticity equations and two-dimensional heat equations written for an inhomogeneous material were used to study the temperature stresses in the plate.  Using the method of double trigonometric series in spatial variables and the Laplace integral transformation over time, the general solutions of boundary value problems of thermoelasticity and heat conductivity for this plate under the action of a locally distributed temperature field specified at the initial moment of time are written down.  The normal stresses in the layers of the plate are numerically analyzed depending on the geometric parameters, heat transfer coefficient, and time.

two-layer plate
irregular structure
local heat exchange
temperature stresses
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