Hyperelastic material characterisation of rubber by means of novel experimentation and reverse engineering

Connolly, S. and MacKenzie, D. (2017) Hyperelastic material characterisation of rubber by means of novel experimentation and reverse engineering. In: 10th European Conference on Constitutive Models for Rubbers, 2017-08-28 - 2018-08-02.

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    Abstract

    •Hyperelastic characterisation requires multiaxial test data –uniaxial tension, pure shear and equibiaxial tension •To increase the efficiency of material characterisation, a novel, inhomogeneous experiment is introduced utilising finite element optimisation •No-slip compression test data is compared to an equivalent finite element model to optimise the coefficients of several material models •Autonomous investigation of method through Finite Element Analysis (FEA) •8-chain, Yeoh and Ogden-3 models were investigated; 8-chain and Yeoh are suitable for this method but Ogden-3 is not •Combining with uniaxial test data enables an improved fit to test data