Advertisement

Abstract

The purpose of the present investigation is a phenomenological comparison of two models as their mode of deformation is varied. It was initiated by the approximately linear relationship between stress σ and logarithmic time t observed in relaxation of metals, polymers, paper etc., and especially the relationship
$$ - \left( {d\sigma /d\ln t} \right)_{{\text{inft}}{\text{.}}} /\left( {\sigma _0 - \sigma _\infty } \right) = {\text{Ku}} \approx 0.1 $$
(1)
first observed and extensively studied by Kubát (11, 12).

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1).
    Bartenev, G. M. and Yu. S. Zuyev, Strength and Failure of Visco-Elastic Materials, p. 189 (Oxford 1968).Google Scholar
  2. 2).
    Cherry, B. W. and P. L. McGinley, Appl. Polymer Symposia No. 17, 59 (1971).Google Scholar
  3. 3).
    Cottrell, A. H., Theory of Crystal Dislocations, p. 57 (1962).Google Scholar
  4. 4).
    Ferry, J. D., R. F. Landel and M. L. Williams, J. Appl. Physics 26, 359 (1955).ADSCrossRefGoogle Scholar
  5. 5).
    Friedel, J., Dislocations, p. 67 (Oxford 1964).Google Scholar
  6. 6).
    Gilman, J. J., Physics of Strength and Plasticity, p. 3 (1969).Google Scholar
  7. 7).
    Gross, B. and H. Pelzer, J. Appl. Physics 22, 1035 (1951).ADSCrossRefzbMATHGoogle Scholar
  8. 8).
    Irving, J. and N. Mullineux, Mathematics in Physics and Engineering, p. 599 (New York 1959).Google Scholar
  9. 9).
    Jahnke and Emde, Tables of Higher Functions (1948).Google Scholar
  10. 10).
    Joshi, V. S. and N. R. Kothari, Text. Res. J. 40, 764 (1970).Google Scholar
  11. 11).
    Kubát, J., A Similarity in the Stress Relaxation Behaviour of High Polymers and Metals. (Diss.) (Stockholm 1965).Google Scholar
  12. 12).
    Kubát, J., IV. Int. Congr. Rheology, Part 1, 281 (1963).Google Scholar
  13. 13).
    Kuhlmann-Wilsdorf, D., Phys. Review 120, 773 (1960).ADSCrossRefMathSciNetGoogle Scholar
  14. 14).
    Leibfried, G. and W. Ludwig, Solid State Physics 12, 365 (1961).Google Scholar
  15. 15).
    Müller, F. H., Rheology V, p. 447 (New York 1969).Google Scholar
  16. 16).
    Olofsson, B., Deformation and Recovery Properties of Textile Materials. (Diss.) (Gothenburg 1968).Google Scholar
  17. 17).
    Olofsson, B., To be published.Google Scholar
  18. 18).
    Zimm, B. H., Rheology III, p. 1 (New York 1960).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1975

Authors and Affiliations

  • Bertil Olofsson
    • 1
  1. 1.Department of Mechanical EngineeringChalmers University of TechnologyGothenburg 5Sweden

Personalised recommendations