On the effective surface energy in viscoelastic Hertzian contacts

  title={On the effective surface energy in viscoelastic Hertzian contacts},
  author={L. Afferrante and Guido Violano},
  journal={Journal of the Mechanics and Physics of Solids},
Viscoelasticity and rate-dependent adhesion of soft matter lead to difficulties in modeling the ’relatively simple’ problem of a rigid sphere in contact with a viscoelastic half-space. For this reason, approximations in describing surface interactions and viscous dissipation processes are usually adopted in the literature. Here, we develop a fully deterministic model in which adhesive interactions are described by Lennard-Jones potential and the material behaviour with the standard linear solid… 
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