<p>A&#xa0;linear model of the theory of thermoelasticity for an isotropic body in the cylindrical coordinate system is considered. The stationary temperature satisfies a&#xa0;three-dimensional Laplace equation. The general solution of the system of Navier’s differential equations, which describes the thermoelastic stress state of the body, is presented as a&#xa0;sum of homogeneous and partial solutions. The partial solution, which does not contain elastic displacements, is called the temperature solution. The theorem states that the sum of normal temperature stresses is zero. To solve the Navier’s equations, the temperature is presented as a&#xa0;Fourier-Bessel series, according to which properties the temperature solution of the Navier’s equations is constructed. Analytical formulas for the description of temperature displacements and stresses in explicit form are given. The general solution of the equations of the theory of thermoelasticity in terms of four harmonic functions is presented.</p>

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Construction of three-dimensional solutions of equations of the theory of thermoelasticity in the cylindrical coordinate system

  • V. P. Revenko

摘要

A linear model of the theory of thermoelasticity for an isotropic body in the cylindrical coordinate system is considered. The stationary temperature satisfies a three-dimensional Laplace equation. The general solution of the system of Navier’s differential equations, which describes the thermoelastic stress state of the body, is presented as a sum of homogeneous and partial solutions. The partial solution, which does not contain elastic displacements, is called the temperature solution. The theorem states that the sum of normal temperature stresses is zero. To solve the Navier’s equations, the temperature is presented as a Fourier-Bessel series, according to which properties the temperature solution of the Navier’s equations is constructed. Analytical formulas for the description of temperature displacements and stresses in explicit form are given. The general solution of the equations of the theory of thermoelasticity in terms of four harmonic functions is presented.