1. Constitutive modelling of elastomer/graphene platelet nanocomposites
- Author
-
Sherif Araby, Mohamed Hassan, Ahmed Abd El-Moneim, Amir A Abdelsalam, Abdelsalam, Amir A, Araby, Sherif, Hassan, MA, El-Moneim, AA, and International Conference on Materials and Intelligent Manufacturing (ICMIM) Singapore 21-23 August 2017
- Subjects
Materials science ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Elastomer ,01 natural sciences ,Finite element method ,0104 chemical sciences ,Strain energy ,Goodness of fit ,Approximation error ,Hyperelastic material ,Deformation (engineering) ,Composite material ,0210 nano-technology ,Tensile testing - Abstract
Elastomers are used in a wide variety of structural and engineering applications. They exhibit a nonlinear elastic stress-strain behaviour known as hyperelasticity which is generally described by hyperelastic strain energy functions. The question raised in the current study was; which model can accurately describe and predict the actual behaviour of the elastomer nanocomposites. The tensile data were used to fit the various elastomeric material models available in MSC. MARC finite element analysis package. The relative percentage error was calculated to determine the goodness of fit in order to select the best model. Numerical results showed that the third order deformation model was the best among the various material models since giving a maximum relative error of fit was 2.7% at small and large strains. To verify the effectiveness of third order deformation model, FE simulations for tensile test was carried out. The results showed that the third order model is sufficiently enough to regenerate the experimental data for uniaxial test and efficiently capture the hyperelastic behavior as good as the experiments.
- Published
- 2017
- Full Text
- View/download PDF