Modeling thermal recovery of the Mullins effect

Shuolun Wang, Shawn A. Chester

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)88-98
Number of pages11
JournalMechanics of Materials
Volume126
DOIs
StatePublished - Nov 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Mechanics of Materials

Keywords

  • Constitutive behavior
  • Finite elements
  • Finite strain
  • Mullins effect
  • Rubber material
  • Thermal recovery

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