A Comparison among Polynomial Model, Reduced Polynomial Model and Ogden Model for Polyurethane Foam

Ming Lei Ju; Hamdi Jmal; Raphaël Dupuis; Evelyne Aubry

doi:10.4028/www.scientific.net/AMR.856.169

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A Comparison among Polynomial Model, Reduced Polynomial Model and Ogden Model for Polyurethane Foam
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A Comparison among Polynomial Model, Reduced Polynomial Model and Ogden Model for Polyurethane Foam

Abstract:

Polyurethane foam is widely used in numerous applications. The quasi-static mechanical behaviour of polyurethane foam shows a nonlinear elasticity and a viscoelasticity in large compression deformation. In this paper, the uniaxial compression / decompression tests in three different strain rates are performed. The purpose of this paper is to propose three visco-hyperelastic models and to identify the parameters based on the experimental results. A difference-stress proper identification method is used to obtain the model parameters. The results show that the three models can predict the mechanical behaviour of polyurethane foam very well. Finally, the three models are compared according to the model results.