On the retraction of an adhesive cylindrical indenter from a viscoelastic substrate

Jan Steven Van Dokkum, Francesc Pérez-Ràfols, Leonid Dorogin, Lucia Nicola

Research output: Contribution to journalArticleScientificpeer-review

1 Downloads (Pure)

Abstract

The retraction of a cylindrical rigid indenter from a viscoelastic substrate is studied by means of an efficient Green's function method. Hysteresis is observed in the load to area relationship in accordance with experimental results. Although our model relaxes many assumptions posed by LEFM-based analytical theories, the results fall between the limits, at high and low retraction velocities, predicted by the theories. Approaching the high velocity instantaneous limit requires, however, very high velocities or Maugis parameter. The work of adhesion is found to change during retraction. A non-dimensional parameter is proposed to estimate the effect of viscoelasticity in adhesive hysteresis.

Original languageEnglish
Article number107234
Number of pages11
JournalTribology International
Volume164
DOIs
Publication statusPublished - 2021

Keywords

  • Adhesion contact
  • Boundary Element Method
  • Indentation
  • Line contact

Fingerprint

Dive into the research topics of 'On the retraction of an adhesive cylindrical indenter from a viscoelastic substrate'. Together they form a unique fingerprint.

Cite this