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On the thermal blunting of crack tips in polymers

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Abstract

The analysis of crack tip blunting in the impact test is reviewed and the results for polymethylmethacrylate at room temperature are presented, together with more recent data for which loading times have been measured. A successful comparison is drawn between the results of impact tests at various strain rates and those of static single edge notched tests where the crack tip region is heated. Such a correlation confirms the suspected suppression of crack tip crazing owing to thermal effects.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Imperial College of Science and Technology, SW7 2BX, London, UK

    E. Q. Clutton & J. G. Williams

Authors
  1. E. Q. Clutton
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  2. J. G. Williams
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Clutton, E.Q., Williams, J.G. On the thermal blunting of crack tips in polymers. J Mater Sci 16, 2583–2589 (1981). https://doi.org/10.1007/BF01113600

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  • DOI: https://doi.org/10.1007/BF01113600

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