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Mechanics of Composite Materials

, Volume 41, Issue 6, pp 535–540 | Cite as

Long-Term Prediction of Creep Strain of Expanded Polystyrene

  • I. J. Gnip
  • V. I. Kersulis
  • S. I. Vaitkus
  • S. A. Veyelis
Article

Abstract

Data obtained in investigating the creep of expanded polystyrene in compression are discussed. An analysis of the results of creep tests 65–608 days long showed that the creep can be predicted for 50 years based on experiments of less duration than the 605 days indicated in EN 13163. For this purpose, it is suggested to employ a 95-fold extrapolation in time if the creep curves are described by a power function (as recommended by EN 13163) or a 50-fold extrapolation if the exponential equation proposed in the present paper is used.

Keywords

expanded polystyrene long-term compression strain creep prediction 

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REFERENCES

  1. 1.
    I. J. Gnip, V. I. Kersulis, and S. I. Vaitkus, “Analytical description of the creep of expanded polystyrene under compressive loading,” Mech. Compos. Mater., 41, No.4, 357–364 (2005).CrossRefGoogle Scholar
  2. 2.
    EN 1606+AC:1997 E. Thermal Insulating Products for Building Applications. Determination of Compressive Creep (1997).Google Scholar
  3. 3.
    EN 13163:2001 E. Thermal Insulation Products for Buildings. Factory Made Products of Expanded Polystyrene (EPS). Specification (2001).Google Scholar
  4. 4.
    J. Martino, Technological Prediction [Russian translation], Progress, Moscow (1977).Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • I. J. Gnip
    • 1
  • V. I. Kersulis
    • 1
  • S. I. Vaitkus
    • 1
  • S. A. Veyelis
    • 1
  1. 1.“Thermoinsulation” InstituteGediminas Vilnius Technical UniversityVilniusLithuania

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