Summary
This paper is concerned with the formulation of a plane thermoelastic problem in a multiplyconnected region exhibiting temperature-dependent material properties in terms of a stress function by deriving the integral conditions necessary for the assurance of the single-valuedness of the rotation and displacements, i.e., new Michell's conditions and the finite difference representation of the resulting fundamental equations.
The method of solution for the thermoelastic problem in the multiply-connected region is applied to a transient plane-strain thermal stress problem in a hollow circular cylinder having temperature-dependent material properties subjected to an asymmetrical heating by a high-temperature fluid on the inner surface of the cylinder.
Übersicht
In dieser Untersuchung wird ein thermoelastisches Problem mit mehrfach zusammenhängendem Gebiet und temperaturabhängigen Materialeigenschaften mit Hilfe einer Spannungsfunktion behandelt. Die Bedingungen für Eindeutigkeit von Rotation und Verschiebung werden hergeleitet. Die Grundgleichungen des Problems werden mit der Methode der finiten Differenzen gelöst.
Als Anwendungsbeispiel wird ein hohler Kreiszylinder mit temperaturabhängigen Werkstoffeigenschaften betrachtet. Der Zylinder wird dabei durch eine Flüssigkeit mit hoher Temperatur in seinem Innern einer symmetrischen Erwärmung unterworfen.
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Sugano, Y. On a stress function method of a thermoelastic problem expressed in cylindrical coordinates in a multiply-connected region exhibiting temperature-dependent material properties. Ing. arch 54, 301–308 (1984). https://doi.org/10.1007/BF00532556
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DOI: https://doi.org/10.1007/BF00532556