Time-stress correspondence in viscoelastic materials: an equation for the stress and temperature shift factor

Authors
Brostow, W
Citation
W. Brostow, Time-stress correspondence in viscoelastic materials: an equation for the stress and temperature shift factor, MAT RES INN, 3(6), 2000, pp. 347-351
Citations number
37
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH INNOVATIONS
ISSN journal
14328917 → ACNP
Volume
3
Issue
6
Year of publication
2000
Pages
347 - 351
Database
ISI
SICI code
1432-8917(200010)3:6<347:TCIVMA>2.0.ZU;2-K
Abstract
Stress-time correspondence principle discovered experimentally by O'Shaughn essy already in 1948 [1] is considered. Using the Doolittle formula for the viscosity as a function of free volume 12], an equation for the generalize d temperature-stress shift factor a(T,sigma) is obtained. An equation for t he stress-dependent shift factor a(sigma) follows as a special case. The eq uation for the temperature shift factor a(T) already derived in 1985 [3] an d successfully used since also follows from the a(T,sigma) formula.