Skip to main content
SpringerLink
Log in

The influence of temperature and frequency on fatigue crack propagation in polymers

  • Kolloide
  • Published:
Colloid and Polymer Science Aims and scope Submit manuscript

Summary

Centrally notched plate specimens of PMMA and PC were cycled in tension between constant stress intensity limits and crack growth was monitored against the number of cycles. A range of frequencies between 0.1 IIz and 100 Hz, and of temperatures between − 70 °C and + 40 °C was investigated. It was found that the cyclic crack growth decreased with decreasing temperature and/or increasing frequency. A linear relationship between crack length and number of cycles was observed. Application of the cyclic crack propagation law proposed byArad-Radon-Culver, namelyd(2a)/dN = βλn where λ is (K max 2 -K min 2) and Kmax andK min are the respective values of maximum and minimum stress intensity factors, indicates that the indexn is unaffected by temperature or frequency variations in the investigated range (II regime of fatigue crack propagation) and the law would be a valid model if the termβ is suitably determined.

Zusammenfassung

Ermüdungsversuche im Rahmen der linearelastischen Bruchtheorien wurden ausgeführt auf zentralgekerbten Platten von PMMA und PC, sowie Rißwachstum als Funktion der Belastungszahl gemessen. Frequenzen von 0.1 Hz bis 100 Hz und Temperaturen von − 70 °C bis 40 °C zeigten, daß sich das Rißwachs-tum mit verringerter Temperatur und/oder erhöhter Frequenz verringerte. Eine lineare Abhängigkeit der Rißlänge von Belastungszahl wurde festgestellt. Die Benutzung der Rißausbreitung-Analyse von Arad-Radon-Culverd(2a)/dN =βλn, woλ ist (K max 2 -K min 2), zeigt, daß der Indexn nicht beeinflußt ist von Temperatur oder Frequenzwechsel in dem untersuchten Bereich (das sogenannte “zweite Regime” des Ermüdungswachstums). Wenn man die Konstanteβ festgestellt hat, dann ist die Arad-Radon-Culver-Methode direkt benutzbar.

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

Similar content being viewed by others

References

  1. Arad, S., J. C. Radon andL. E. Culver, J. Mech. Eng. Sc.13, 2 (1971).

    Google Scholar 

  2. Arad, S., J. C. Radon, L. E. Culver, J. Mech. Eng. Sc.14, 328–334 (1972).

    Google Scholar 

  3. Higuchi, M. andH. Ishii, Rep. Res. Inst. Appl. Mech., Kyushu Univ.16, 69 (1968).

    Google Scholar 

  4. ASTM-STP 410 (1966).

  5. Arad, S., J. C. Radon and L. E. Culver, Growth of fatigue cracks in thermoplastics. Proc. IIIrd Int. Conf. on Fracture7, paper VI-323 (Munich, 1973).

  6. Radon, J. C., Colloid and Polymer Sci.252, 117–123 (1974).

    Google Scholar 

  7. Radon, J. C., J. Appl. Pol. Sci., 3515–3528 (1973).

  8. Johnson, F. A., A. P. Glover andJ. C. Radon, Fracture toughness of polycarbonate. Proc. 1st Symp. on Mech. Behaviour of Materials, pp. 141–148 (Kyoto, 1973).

  9. Wakashima, H. andT. Kurobe, 15th Japan Congr. on Mat. Res., Nonmetallic materials, 137 (1972).

  10. Arad, S., Fracture Mechanics Analysis of Fatigue Crack Growth in Viscoelastic Solids. Ph. D. Thesis (University of London, 1972).

  11. Paris, P. C., The fracture mechanics approach fatigue, in Proc. 10th Sagamore Army Mater. Conf., (Syracuse University, 1964).

  12. Mukherjee, B., IIIrd Int. Conf. on Fracture, Munich, paper V-423 (1973).

  13. Johnson, F. A. andJ. C. Radon, J. Polym. Sci., Chem. Ed.11, 1995–202 (1973).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Imperial College of Science and Technology, Exhibition Road, SW7 2BX, London, England

    J. C. Radon, P. Chauhan & L. E. Culver

Authors
  1. J. C. Radon
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. Chauhan
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L. E. Culver
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

With 12 figures

Rights and permissions

Reprints and permissions

About this article

Cite this article

Radon, J.C., Chauhan, P. & Culver, L.E. The influence of temperature and frequency on fatigue crack propagation in polymers. Colloid & Polymer Sci 254, 382–388 (1976). https://doi.org/10.1007/BF01382119

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01382119

Keywords

Search

Navigation