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Chemical and Petroleum Engineering

, Volume 48, Issue 5–6, pp 291–296 | Cite as

Determination of temperature-induced stresses in enclosing foam-plastic structures

  • G. P. Ponomareva
Article

A solution is presented for the problem of thermoelasticity of a thick-wall hollow cylindrical structure fashioned from foam polyurethane with an outer layer of basalt plastic. A method is proposed for determination of the temperature field across the section, which is based on solution of a nonlinear heat-conduction equation. The influence exerted by temperature on the magnitude of the specific heat conduction and elastic modulus, which takes into account the material’s heterogeneity, is indicated. A partial-linearization scheme using Kirchhoff transforms is proposed on the basis of solution of a linear equation with variable coefficients, and a successive-approximation scheme based on the finite-element method is employed.

Keywords

foam polyurethane stress-strain state thermoelasticity heterogeneity finite-element method 

References

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Copyright information

© Springer Science+Business Media, Inc. 2012

Authors and Affiliations

  • G. P. Ponomareva
    • 1
  1. 1.Engels Technical University, Branch of the Saratov State Technical UniversityEngelsRussia

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