Determination of material models of nr/sbr based elastomers using finite element method

Rubbers are important engineering materials being used in industries for a long time. Their usage is increasing more and more in everyday. Similarly, Numerical methods such as Finite Element Method is inevitable tool being used in Computer Aided Design and Manufacturing.The main aim of this research is to establish a realistic FE model with uniaxial data and determine the characteristic of special elastomer materials used in a PhD. Dissertation and to show that these materials can be used in different application areas.In this research, material behavior of NR/SBR materials with different filler materials (in the amount of 250g, 500g, 750g) such as glass sphere, mica powder , wollastonite was determined by using Abaqus 6.7.1.The experimental work was performed in two stages. In the first stage, test parts were made of NR/SBR materials were produced and all uniaxial tension tests were conducted properly. Data from experimental results were transferred to Abaqus CAE. All mathematical models were tested in Abaqus to determine the appropriate one. As a result, Morlow form was found to be the ideal mathematical material model with related coefficients.Finally, experimental and FE results were compared and it is found that there are %0,25-0,5 error for the elastomer material with glass sphere fillers, %0,01-0,5 error with mica powder fillers, 0,2-0,44 for wollastonit fillers.