The nonlinear viscoelastic response of glassy polymers subjected to physical aging

Aleksey D. Drozdov

doi:10.1002/1521-3919(20010601)10:5<491::AID-MATS491>3.0.CO;2-G

The nonlinear viscoelastic response of glassy polymers subjected to physical aging

Aleksey D. Drozdov

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Full Paper: Constitutive equations are developed for the nonlinear vicoelastic behavior of amorphous glassy polymers in the sub-yield region. A polymeric glass is treated as an ensemble of cooperatively rearranging regions bridged by links. Stress-strain relations are derived and verified by comparison with experimental data in static mechanical tests on polycarbonate and poly(methyl methacrylate). We analyze the effects of the straining state (tension, compression and torsion), strain intensity, temperature and time of annealing on stress relaxation. Fair agreement is demonstrated between observations and results of numerical simulation.

Original language	English
Pages (from-to)	491-506
Number of pages	16
Journal	Macromolecular Theory and Simulations
Volume	10
Issue number	5
DOIs	https://doi.org/10.1002/1521-3919(20010601)10:5<491::AID-MATS491>3.0.CO;2-G
State	Published - 31 Jul 2001
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1002/1521-3919(20010601)10:5<491::AID-MATS491>3.0.CO;2-G

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AB - Full Paper: Constitutive equations are developed for the nonlinear vicoelastic behavior of amorphous glassy polymers in the sub-yield region. A polymeric glass is treated as an ensemble of cooperatively rearranging regions bridged by links. Stress-strain relations are derived and verified by comparison with experimental data in static mechanical tests on polycarbonate and poly(methyl methacrylate). We analyze the effects of the straining state (tension, compression and torsion), strain intensity, temperature and time of annealing on stress relaxation. Fair agreement is demonstrated between observations and results of numerical simulation.

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The nonlinear viscoelastic response of glassy polymers subjected to physical aging

Abstract

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