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Kinetic theory of brittle fracture of polymeric glasses

  • Structures And Properties
  • Published:
Polymer Mechanics Aims and scope

Conclusions

1. The stress distribution over the individual bonds at the end of a crack is taken into account on the basis of fracture mechanics using the Bartenev-Razumovskaya-Rebinder kinetic model for polymeric glasses.

2. The rate of growth of a transverse edge crack in a strip subjected to tensile stresses is obtained as a function of the parameter σ√l; this dependence is similar to that observed experimentally.

3. The time characteristics of the strength are calculated numerically with reference to polymethyl methacrylate.

4. An approximate analytic expression is obtained for the lifetime of a strip of polymeric glass; at σo<σ<σk this expression coincides with the exact result calculated on a computer.

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Authors
  1. G. M. Bartenev
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  2. B. M. Tulinov
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Additional information

Institute of Physical Chemistry, Academy of Sciences of the USSR, Moscow. Moscow Engineering Physics Institute. Translated from Mekhanika Polimerov, No. 1, pp. 3–11, January–February, 1977.

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Bartenev, G.M., Tulinov, B.M. Kinetic theory of brittle fracture of polymeric glasses. Polymer Mechanics 13, 1–8 (1977). https://doi.org/10.1007/BF00857271

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  • DOI: https://doi.org/10.1007/BF00857271

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