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Plastic deformation of glassy amorphous polymers: influence of strain rate

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Abstract

The compressive deformation of glassy atactic polymethyl methacrylate has been studied in the temperature range 150<T<330 K as a function of applied strain rate. Special emphasis is given to the definition of an elementary activation rate, i.e. the characteristic frequency of the successful plastic deformation events. This determines the frequency at which the elastic counteraction of the medium to the nucleation of plasticity has to be taken into account, in order to ensure self-consistence of the kinetic and thermodynamic analysis of deformation previously proposed.

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Authors and Affiliations

  1. Laboratoire de Structures et Propriétés de l'Etat Solide CNRS (LA 234), Université des Sciences et Techniques de Lille, 59655, Villeneuve d'Ascq Cedex, France

    J. M. Lefebvre & B. Escaig

Authors
  1. J. M. Lefebvre
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  2. B. Escaig
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Lefebvre, J.M., Escaig, B. Plastic deformation of glassy amorphous polymers: influence of strain rate. J Mater Sci 20, 438–448 (1985). https://doi.org/10.1007/BF01026512

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  • DOI: https://doi.org/10.1007/BF01026512

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