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Investigating the existence of a threshold stress intensity for slow crack growth in high-density polyethylene

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Abstract

The existence of a threshold stress intensity for failure by slow crack growth under plane strain conditions for single-edge notched tensile specimens and for three-point bending was investigated at 42° C. It was found that the threshold for the nucleation of damage was between 0.074 and 0.063 MPa m1/2 and the threshold for complete failure was about 0.08 MPam1/2.

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Author notes

  1. Ruzheng Qian & Xici Lu

    Present address: University of Science and Technology, Hefei, Anhui, China

Authors and Affiliations

  1. Department of Materials Science and Engineering, Laboratory for Research on Structure of Matter, University of Pennsylvania, 19104-6272, Philadelphia, Pennsylvania, USA

    Ruzheng Qian, Xici Lu & Norman Brown

Authors
  1. Ruzheng Qian
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  2. Xici Lu
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  3. Norman Brown
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Qian, R., Lu, X. & Brown, N. Investigating the existence of a threshold stress intensity for slow crack growth in high-density polyethylene. J Mater Sci 24, 2467–2472 (1989). https://doi.org/10.1007/BF01174513

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  • DOI: https://doi.org/10.1007/BF01174513

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