Modeling thermal recovery of the Mullins effect

Document Type

Article

Publication Date

11-1-2018

Abstract

Many elastomeric materials exhibit the Mullins effect, or stretch-induced stress softening. However, early experiments show that the Mullins effect may be recovered after annealing previously stretched material in a stress-free state. And that both the rate and degree of recovery are affected by the annealing temperature. In this work, we develop a thermo-mechanically-coupled large-deformation constitutive model that quantitatively captures thermal recovery of the Mullins effect. The model is calibrated to experiments from the literature, and is numerically implemented by writing a user material subroutine for the finite element program Abaqus/Standard. Lastly, our simulation results suggest that unanticipated behavior due to recovery of the Mullins effect is possible.

Identifier

85051759497 (Scopus)

Publication Title

Mechanics of Materials

External Full Text Location

https://doi.org/10.1016/j.mechmat.2018.08.002

ISSN

01676636

First Page

88

Last Page

98

Volume

126

Grant

CMMI-1463121

Fund Ref

National Science Foundation

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