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

被引：54

作者：

Brostow, W ^{[1
]}

机构：

[1] Univ N Texas, Dept Mat Sci, Lab Polymers & Composites, LAPOM, Denton, TX 76203 USA

[2] Univ N Texas, Dept Chem, Lab Polymers & Composites, LAPOM, Denton, TX 76203 USA

来源：

MATERIALS RESEARCH INNOVATIONS | 2000年 / 3卷 / 06期

关键词：

viscoelasticity; temperature shift factor; stress shift factor; polymer property prediction; polymer reliability; polymer mechanical properties; time-stress correspondence; time-temperature correspondence; thermal mechanical analysis; equation of state; Hartmann equation; creep compliance;

D O I：

10.1007/s100190000054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stress-time correspondence principle discovered experimentally by O'Shaughnessy already in 1948 [1] is considered. Using the Doolittle formula for the viscosity as a function of free volume 12], an equation for the generalized temperature-stress shift factor a(T,sigma) is obtained. An equation for the stress-dependent shift factor a(sigma) follows as a special case. The equation for the temperature shift factor a(T) already derived in 1985 [3] and successfully used since also follows from the a(T,sigma) formula.

引用

页码：347 / 351

页数：5

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