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Evolution of strain localization in glassy polymers: A numerical study

Abstract:

An explicit numerical implementation is described, for a constitutive model of glassy polymers, previously proposed and validated. Then it is exploited within a Finite Element continuum model, to simulate spontaneous strain localization (necking) occurring during extension of a prismatic bar of a typical glassy polymer. Material parameters for atactic polystyrene are employed. The material model is physically based and highly non-linearly viscoelastic. Three of its principal features are crit...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Journal:
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Volume:
46
Issue:
7-8
Pages:
1607-1623
Publication date:
2009-04-05
DOI:
ISSN:
0020-7683
URN:
uuid:9fab3f1a-f1d6-42ee-aa89-cf7c4f1db3ca
Source identifiers:
63609
Local pid:
pubs:63609

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