Role of vortex-like motion in contact loading of strengthening coating. Movable cellular automaton modeling

Alexey Yu Smolin, Galina M. Eremina, Sergey G. Psakhie

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Movable cellular automata (MCA) is an efficient numerical method in particle mechanics, which assumes that any material is composed of elementary objects interacting among each other according to many-particle forces. In this paper MCA method is applied to modeling deformation of 3D coating-substrate system under its contact loading by rigid indenter. Main attention of the research is focused on the role of vortex-like structures in the velocity fields in deformation of the strengthening coating and substrate. The mechanical properties of model coating correspond to multifunctional bioactive nanostructured film (TiCCaPON) and the properties of substrate, to nanostructured titanium. Loading is performed by hard conical indenter. The peculiarities of velocity vortex formation and propagation, as well as its interaction with structural elements are studied. One of possible application of the study is non-destructive technique for detecting nanoscale defects in surface layer of a material using frequency analysis of the force resisting to sliding of a small counter- body on the material surface, known as tribospectroscopy. Possibilities of this technique are studied based on 3D modeling by MCA method for the above mentioned coating with nano- pores. It is shown that specific peaks at the friction force spectrum correspond to different geometrical characteristics of the nano-pores.,.

Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015
PublisherInternational Center for Numerical Methods in Engineering
Number of pages8
ISBN (Print)9788494424472
Publication statusPublished - 2015
Event4th International Conference on Particle-Based Methods, PARTICLES 2015 - Barcelona, Spain
Duration: 28 Sep 201530 Sep 2015


Other4th International Conference on Particle-Based Methods, PARTICLES 2015


  • Coating
  • Contact loading
  • DEM
  • Velocity field
  • Vortex

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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