Isaac Scientific Publishing

Journal of Advances in Applied Mathematics

Predictive Continuum Constitutive Modeling of Unfilled and Filled Rubbers

Download PDF (4300.4 KB) PP. 146 - 161 Pub. Date: July 1, 2021

DOI: 10.22606/jaam.2021.63002

Author(s)

  • Fuzhang Zhao*
    APD Optima Study, Lake Forest, CA 92630, USA

Abstract

The general CSE model fits Treloar’s uniaxial extension test and predicts unfitted
uniaxial compression, equibiaxial extension, biaxial extension, pure shear, and simple shear tests. As
a newly proposed method, the general CSE model, along with the stress-softening ratio, the residualstretch
ratio, and the weighted piecewise two-point interpolation function, fits the Cheng–Chen’s
test and the Diani–Fayolle–Gilormini’s test in cyclic uniaxial extension at different pre-stretches
and predicts corresponding responses at untested pre-stretches. Physical mechanisms of the Mullins
effect have also been predicted based on the evolution of constitutive parameters.

Keywords

Filled rubber, general CSE functional, Mullins effect, predictive constitutive modeling, unfilled rubber.

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