Thermomechanics of rubber at small strains

A reduced variable, linear thermoelastic constitutive equation for rubber at small strains is obtained from classical linear thermoelasticity and empirical observations about the stress-temperature behaviour of real elastomers at fixed strain. In contrast to the statistical theory of rubber elastici...

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Bibliographic Details
Published in:Polymer (Guilford) 1987-06, Vol.28 (7), p.1127-1132
Main Authors: Lyon, R.E., Farris, R.J.
Format: Article
Language:English
Subjects:
Applied sciences
entropy
Exact sciences and technology
internal energy
Organic polymers
Physicochemistry of polymers
Properties and characterization
rubber
rubber elasticity
stress strain relations
thermoelasticity
thermomechanics
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Summary:A reduced variable, linear thermoelastic constitutive equation for rubber at small strains is obtained from classical linear thermoelasticity and empirical observations about the stress-temperature behaviour of real elastomers at fixed strain. In contrast to the statistical theory of rubber elasticity, volume changes are recognized explicitly in the three constant equation of state. This formulation leads to self-consistent, quantitative predictions of the thermoelastic inversion and internal energy changes with deformation which support the basic tenets of the statistical theory.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(87)90254-0