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Stress–strain properties of linear aromatic polyesters in the nonlinear viscoelastic range
Author(s) -
Ng Tie Hwee,
Williams H. Leverne
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070320511
Subject(s) - viscoelasticity , polyester , stress relaxation , materials science , creep , nonlinear system , relaxation (psychology) , stress (linguistics) , constitutive equation , constant (computer programming) , yield (engineering) , stress–strain curve , thermodynamics , composite material , deformation (meteorology) , physics , finite element method , psychology , social psychology , linguistics , philosophy , quantum mechanics , computer science , programming language
The stress–strain curves for a series of linear aromatic polyesters were curve‐fitted to yield constant parameters for the one‐dimensional and three‐dimensional constitutive equations for nonlinear viscoelastic properties. Using these constants, the stress–strain curves could be reconstituted somewhat better by the one‐dimensional equations, but the agreement with the three‐dimensional curves was good. The same constants can be used to predict creep and stress–relaxation, the data for which are in a companion paper.