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Plastic flow in glassy polymers
Author(s) -
Argon A. S.,
Bessonov M. I.
Publication year - 1977
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760170306
Subject(s) - materials science , polymer , phenomenology (philosophy) , shear (geology) , plasticity , deformation (meteorology) , shear flow , phenomenological model , simple shear , yield (engineering) , thermodynamics , composite material , condensed matter physics , physics , philosophy , epistemology
Massachusetts Institute of Technology Cambridge, Massachusetts 02.139 The phenomenology of plastic deformation in glassy polymers is described, and a theory based on a molecular model for such deformation is presented and contrasted with other published theories. A phenomenological yield criterion is presented which is consistent with the theory. It is shown that the theory is in very good accord with experimental results on the temperature dependence of the plastic shear resistance of a large group of glassy polymers with widely different molecular structures. Finally, the formation and growth of shear deformation bands is described, based purely on the mechanics of localization processes in inelastically deforming continua.