Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Rubber bushing hyperelastic behavior based on shore hardness and uniaxial extension
Submission Author:
Debora Lalo , SP
Co-Authors:
Debora Lalo, Marcelo Greco
Presenter: Debora Lalo
doi://10.26678/ABCM.COBEM2017.COB17-5280
Abstract
The elastomeric bushings are essential in the engineering field once they isolate vibration, reduce noise, accommodate oscillatory motions and allow axes misalignments. As the bushings are rubber-like materials, their constitutive relations are highly nonlinear and characterized by strain energy functions that need to be identified. Most of these models are referred as hyperelastic material models. In the present paper, an elastomeric bushing manufactured by Vibtech company is evaluated, and its stiffness response in a certain working load condition is determined through an uniaxial tensile test in which the parameters of Marlow model are defined by fitting the experimental tensile stress–strain data with the Finite Element Analysis. It is investigated the correlation between the identified results obtained from the prototype test and the virtual model obtained from uniaxial tensile experimental data. The final results are also compared with the Mooney-Rivlin constitutive model response based on the parameters extract from literature that can be ranged according to the rubber shore hardness.
Keywords
Rubber-like materials, Hyperelastic constitutive models, Uniaxial tensile test, Finite Element Analysis
