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Application of fracture mechanics to plastics deformed at high strain-rates

Part 2 Geometrical factors

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Abstract

The effects of wall thickness and tube length on the fracture strength of thin walled cylindrical specimens of poly(methylmethacrylate) containing artificial flaws is examined. Data obtained are compared with that predicted by fracture mechanics theory developed for quasi-static conditions. Special attention is given to corrections for finite width and bending effects under dynamic loading conditions. It is concluded that the fracture mechanics relationships derived for quasi-static conditions, with the exception of the bending correction factor, are applicable to the dynamic situation with reasonable accuracy. It is further concluded that, for accurate analysis, the effect of dynamic loading on the stress field, and possibly the stress intensity factor, must be taken into consideration.

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Authors and Affiliations

  1. Department of Materials, Queen Mary College, University of London, UK

    H. V. Squires & P. E. Reed

Authors
  1. H. V. Squires
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  2. P. E. Reed
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Squires, H.V., Reed, P.E. Application of fracture mechanics to plastics deformed at high strain-rates. J Mater Sci 10, 1465–1471 (1975). https://doi.org/10.1007/BF01031845

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  • DOI: https://doi.org/10.1007/BF01031845

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