AMRG Seminar: 31/10/18

The Advanced Materials Research Group (AMRG) would like to welcome you to attend the following seminar: 

"A phenomenological constitutive model for the viscoelastic deformation of elastomers including Mullins effect"

By Vinotharan Annarasa

Abstract:

Elastomers are essential to a wide range of industrial applications, such as dampers and seals. Constitutive models are a critical element in the design process to simulate the inservice behaviour of these products during their life cycle. The stress-softening phenomenon known as the Mullins effect alters the constitutive response, and little is known as to how it influences the time-dependence. This work presents a newly developed constitutive model that includes the Mullins effect inspired by cyclic deformation experiments. The model is applied to uniaxial tensile experimental data on a grade of EPDM rubber, and explores its applicability to the prediction of the response to deformation, of energy dissipation during cyclic loading, and to stress relaxation and stress memory.