Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Mechanical behavior of elastomers under uniaxial tensile tests assisted by digital image tracking
Submission Author:
Henrique Ossamu Hisano Natori , SP
Co-Authors:
Katylin Meira, Caiuã Melo, C. C., Rodrigo Bresciani Canto, Ricardo Afonso Angélico, Henrique Ossamu Hisano Natori
Presenter: Henrique Ossamu Hisano Natori
doi://10.26678/ABCM.COBEM2017.COB17-2861
Abstract
The precise evaluation of parameters of material models is essential to achieve better design solutions, but conventional measuring techniques lead to difficulties when applied to materials that withstand large deformation, e.g. elastomers. Solutions as non-intrusive techniques have been developed to overcome these difficulties. The aim of the present article is to identify material model parameters from uniaxial tensile tests with subsequent loadings and unloadings assisted by digital image tracking (DIT). The identification procedure has been applied to four hyperelastic models: Neo-hookean, Arruda-Boyce, Money-Rivlin and Yeoh. A bicomponent translucent silicone rubber (RenCast 4644-1 - Huntsman) was studied under different displacement levels in order to observe the Mullins effect and evaluate parameters for the material model. Arruda-Boyce and Yeoh hyperelastic models with Mullins effect presented the best fit to the uniaxial tensile data.
Keywords
image tracking, Elastomers, Mechanical Properties, hyperelastic model, Mullins Effect
