Abstract
This paper concerns the development of a constitutive model of Polyvinylidene fluoride (PVDF), a piezoelectric polymer. Suitable assumptions are made based on experimental data available in literature. The model is proposed for Form II of the PVDF material. Mooney-Rivlin and Neo-Hookean models are assumed to predict the finite elastic deformation characteristics of the material and experimental data are fitted to test the range of validity of the model. Predictions based on the Mooney-Rivlin and the Neo-Hookean models show that the Mooney-Rivlin model correlates very well with the experimental data within reasonably finite strain ranges (deviation upto 3-5Vo) whereas the Neo-Hookean model deviates largely from the experimental (about 50Vo).
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