Abstract
A viscohyperelastic constitutive model is proposed to describe the mechanical behaviour of vibration isolation rubber under broad-band vibration. This constitutive model comprises two parts: a component with three parameters to characterise the hyperelastic static properties of rubber materials, and the other component incorporates two relaxation time parameters, corresponding to high and low strain rates respectively, to describe the, dynamic response under vibration and impact loadings. Based on this proposed constitutive model, a series of experiments were performed on two types of rubber materials over a wide strain rate range. The results predicted from this model are in good agreement with the experimental data.
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