A New Constitutive Model for the Chemical Aging of Rubber Networks in Deformed States

This paper describes the finite element implementation of a recently developed constitutive model for the chemical aging of rubber in deformed states. The model was developed from molecular dynamics simulations that investigated two stage networks. The model includes the effects of multiple stages o...

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Bibliographic Details
Published inMacromolecules Vol. 41; no. 24; pp. 9896 - 9903
Main Authors Budzien, Joanne, Rottach, Dana R, Curro, John G, Lo, Chi S, Thompson, Aidan P
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 23.12.2008
Subjects
Applied sciences
Chemical reactions and properties
Degradation
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Finite element method
Compressive stress
Tensile stress
Stress relaxation
Computer simulation
Vulcanizate
Strain energy
Ageing
Molecular dynamics method
Theoretical study
Permanent strain
Chemical degradation
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Summary:This paper describes the finite element implementation of a recently developed constitutive model for the chemical aging of rubber in deformed states. The model was developed from molecular dynamics simulations that investigated two stage networks. The model includes the effects of multiple stages of cross-linking and scission while the sample is deformed and the effects of physical entanglements. Given the deformation and chemical history of a sample, finite element calculations using this model are shown to make quantitative predictions of permanent set for two sample experimental systems.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma801373z