Skip to main content
SpringerLink
Log in

Analysis of reversible and irreversible strains in the creep of a nonlinear viscoelastic polymer

  • Published:
Mechanics of Composite Materials Aims and scope

The results of an experimental investigation and analytical description of creep of a nonlinear viscoelasticplastic material (a Upilex-S polyimide film) in tension are presented. The elastic modulus, yield stress, and ultimate strength were found from quasi-static tests with a constant deformation rate. The total strain of the material was assumed to be the sum of elastic, viscoelastic, and irreversible strains. The reversible elastic and viscoelastic and the irreversible deformation of the material were investigated in experiments on creep with the subsequent recovery of deformations (creep recovery). The nonlinearity of its viscoelastic behavior was taken into account using the principle of stress-time superposition. The results obtained allow one to describe the creep behavior of a material at various stages of loading and unloading.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. I. I. Bugakov, Creep of Polymeric Materials [in Russian], Nauka, Moscow (1973).

    Google Scholar 

  2. R. A. Shapery, “Nonlinear viscoelastic and viscoplastic constitutive equations based on thermodynamics,” Mech. Time-Depend. Mater., 1, 209-240 (1997).

    Google Scholar 

  3. H. F. Brinson and L. C. Brinson, Polymer Engineering Science and Viscoelasticity, Springer (2008).

  4. A. K. Malmeister, V. P. Tamuzh, and G. A. Teters, Strength of Polymer and Composite Materials [in Russian], Zinatne, Riga (1980).

    Google Scholar 

  5. R. D. Maksimov, E. Z. Plume, and J. O. Jansons, “Comparative studies on the mechanical properties of a thermoset polymer in tension and compression,” Mech. Compos. Mater., 41, No. 5, 425-436 (2005).

    Article  CAS  Google Scholar 

  6. R. A. Schapery, “On the characterization of nonlinear viscoelastic materials,” Polym. Eng. Sci., 9, No. 4, 295-310 (1969).

    Article  CAS  Google Scholar 

  7. M. Megnis and J.Varna, “Nonlinear viscoelastic, viscoplastic characterization of undirectional GF/EP composite,” Mech. Time-Depend. Mater., No. 7, 269-290 (2003).

    Article  CAS  Google Scholar 

  8. M. Megnis and J. Varna, “Micromechanics-based modeling of nonlinear viscoplastic response of unidirectional composite,” Compos. Sci. Technol., No. 63, 19-31 (2003).

    Google Scholar 

  9. Yu. S. Urzhumtsev and R. D. Maksimov, Prediction of Deformability of Polymeric Materials [in Russian], Zinatne, Riga (1975).

    Google Scholar 

  10. A. Aniskevich and Z. Kalnroze, “Procedures for measuring the biaxial deformations of thin films in tension,” Materials, Technologies, Instruments [in Russian], 13, 105-110 (2008).

Download references

Acknowledgments

This study was financially supported by the European Social Fund (Project No. 2009/0209/1DP/1.1.1.2.0/09/APIA/VIAA/114) and by the Latvian Council of Science (Grant No. 09.1545).

Author information

Authors and Affiliations

  1. Institute of Polymer Mechanics, University of Latvia, Riga, Latvia

    J. Jansons, A. Aniskevich & L. Pazhe

Authors
  1. J. Jansons
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Aniskevich
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L. Pazhe
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to L. Pazhe.

Additional information

Translated from Mekhanika Kompozitnykh Materialov, Vol. 48, No. 2, pp. 303-314 , March-April, 2012

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jansons, J., Aniskevich, A. & Pazhe, L. Analysis of reversible and irreversible strains in the creep of a nonlinear viscoelastic polymer. Mech Compos Mater 48, 209–216 (2012). https://doi.org/10.1007/s11029-012-9266-6

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11029-012-9266-6

Keywords

Search

Navigation