A 2D dual-scale method to address contact problems

Mohammad Aramfard, Francisco Pérez-Ràfols, Lucia Nicola*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A seamless 2D dual-scale computational scheme is developed to study contact problems. The model consists of an atomistic domain close to the contact, coupled with an elastic continuum domain away from the contact. The atomistic formulation provides a description of the contact interaction through interatomic potentials and permits to capture atomic wear and defect formation in the contact region. The fields in the continuum domain are calculated by an efficient FFT-based Green's function method. The novel scheme is validated against full atomistic simulations and applied to study the effect of adhesion on the scratching of a rough copper surface by a rigid smooth spherical tip.

Original languageEnglish
Article number107509
Number of pages10
JournalTribology International
Volume171
DOIs
Publication statusPublished - 2022

Keywords

  • Contact mechanics
  • Friction
  • Indentation
  • Multiscale modeling

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