A new phenomenological model for stress-softening in elastomers

被引：60

作者：

Zúñiga, AE ^{[1
]}

Beatty, MF ^{[1
]}

机构：

[1] Univ Nebraska, Dept Engn Mech, Lincoln, NE 68588 USA

来源：

ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK | 2002年 / 53卷 / 05期

关键词：

Mullins effect; stress-softening; damaged induced inelasticity; finite deformations; constitutive equations; elastomers; non-Gaussian network models; simple tension;

D O I：

10.1007/PL00022513

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A new phenomenological model for stress-softening of isotropic, incompressible hyperelastic rubberlike materials is presented. For any specified virgin material constitutive equation, the stress-softened material response due to microstructural damage is characterized by an exponential softening function that depends on the current magnitude of strain and its maximum previous value in a deformation of the virgin material. The theory is illustrated for a neo-Hookean material; and it is shown that results derived for two non-Gaussian molecular network material models compare most favorably with uniaxial extension data provided by others.

引用

页码：794 / 814

页数：21

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