Skip to main content
SpringerLink
Log in

The relationship of the initiation stage to the rate of slow crack growth in linear polyethylene

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

The rate of notch opening was observed in single-edge notched tension specimens of linear high-density polyethylene under plane strain conditions as a function of applied stress and notch depth. The initial rate of notch opening was 22K 4.3 μm min−1 (where units ofK are MN m−3/2). The initial rate of notch opening was constant until the opening at its root was 25 to 30μm for all stresses and notch depths. The accelerating part of the notch opening against time curve and the time to failure could be predicted from the initial rate of notch opening. It is concluded that the same mechanism governs the initiation stage and the subsequent crack growth rate.

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. S. K. Bhattacharya andN. Brown,J. Mater. Sci. 19 (1984) 2519.

    Google Scholar 

  2. Idem, ibid. 20 (1985) 2767.

    Google Scholar 

  3. Idem, ibid. 20 (1985) 4553.

    Google Scholar 

  4. J. K. Knott, “Fundamentals of Fracture Mechanics” (Butterworths, London, 1973) Ch. 3.

    Google Scholar 

  5. P. C. Paris andC. G. Sih, ASTM Technical Publication No. 381 (American Society for Testing and Materials, Philadelphia, 1965) p. 30.

    Google Scholar 

  6. M. K. V. Chan andJ. G. Williams,Polymer 24 (1983) 234.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering and Laboratory for Research on Structure of Matter, University of Pennsylvania, 19104, Philadelphia, Pennsylvania, USA

    Xici Lu & Norman Brown

Authors
  1. Xici Lu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Norman Brown
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Visiting Scholar from the University of Science and Technology of China, Hefei, China.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lu, X., Brown, N. The relationship of the initiation stage to the rate of slow crack growth in linear polyethylene. J Mater Sci 21, 2423–2429 (1986). https://doi.org/10.1007/BF01114287

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01114287

Keywords

Search

Navigation