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A model for the non‐isothermal viscoelastic behavior of polymers
Author(s) -
Drozdov Aleksey D.
Publication year - 1997
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.11849
Subject(s) - materials science , viscoelasticity , isothermal process , polymer , epoxy , constitutive equation , residual , natural rubber , composite material , glass transition , thermodynamics , finite element method , computer science , physics , algorithm
A new constitutive model is derived for the viscoelastic behavior of polymers under non‐isothermal loading. The model extends the Tobolsky concept of adaptive links (entanglements) between polymeric molecules to thermoviscoelastic media. Employing this model, we calculate residual stresses built up in an epoxy resin plate under cooling from the rubber‐glass transition temperature, analyze the effect of material parameters on residual stresses, and compare results of numerical simulation with experimental data.