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Journal Articles Granular Matter Year : 2022

Approximate coefficient of restitution for nonlinear viscoelastic contact with external load

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Abstract

We derive an approximate coefficient of restitution (CoR) for a single bead impacting the ground when a constant external load acts upon the colliding body. Some of the main applications concern classical nonlinear viscoelastic models such as the Kuwabara-Kono model, Simon-Hunt-Crossley model, and Hertzian stiffness with linear damping, however the proposed approach applies to a wide class of nonlinear viscoelastic contact models. It is shown that suitable expansions allow to derive a computable expression of the CoR which provides accurate predictions for a valuable range of external loads, viscosity coefficients and impact velocities.
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Dates and versions

hal-03463883 , version 1 (02-12-2021)

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Abhishek Chatterjee, Guillaume James, Bernard Brogliato. Approximate coefficient of restitution for nonlinear viscoelastic contact with external load. Granular Matter, 2022, 24 (4), pp.124. ⟨10.1007/s10035-022-01284-w⟩. ⟨hal-03463883⟩
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