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Prediction of stress‐relaxation behavior in high density polyethylene solids
Author(s) -
Nitta Kohhei,
Suzuki Kazushi
Publication year - 1999
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/(sici)1521-3919(19990501)8:3<254::aid-mats254>3.0.co;2-e
Subject(s) - viscoelasticity , materials science , stress relaxation , nonlinear system , relaxation (psychology) , polyethylene , stress (linguistics) , deformation (meteorology) , composite material , ultimate tensile strength , modulus , high density polyethylene , transient (computer programming) , mechanics , creep , thermodynamics , physics , computer science , psychology , social psychology , linguistics , philosophy , quantum mechanics , operating system
The stress‐relaxation behavior of a high density polyethylene solid was investigated using a nonlinear viscoelastic model in which two nonlinear parameters such as the anharmonicity in elastic response and the plastic deformation are introduced into a generalized Maxwell model. The determination of the nonlinear parameters demands the transient modulus data under a constant rate of deformation. The nonlinear viscoelastic model developed from the tensile behavior was found to predict the stress‐relaxation behavior in the nonlinear region.