Publication

Meeting the Contact-Mechanics Challenge

Müser, M. H., Dapp, W. B., Bugnicourt, R., Sainsot, P., Lesaffre, N., Lubrecht, T. A., Persson, B. N. J., Harris, K., Bennett, A., Schulze, K., Rohde, S., Ifju, P., Sawyer, W. G., Angelini, T., Ashtari Esfahani, H., Kadkhodaei, M., Akbarzadeh, S., Wu, J-J., Vorlaufer, G., Vernes, A., Solhjoo, S., Vakis, A. I., Jackson, R. L., Xu, Y., Streator, J., Rostami, A., Dini, D., Medina, S., Carbone, G., Bottiglione, F., Afferrante, L., Monti, J., Pastewka, L., Robbins, M. O. & Greenwood, J. A. 16-Aug-2017 In : Tribology Letters. 65, 4

Research output: Scientific - peer-reviewArticle

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  • Meeting the contact-mechanics challenge

    Final author's version, 2 MB, PDF-document

    Embargo ends: 13/07/2018

DOI

  • Martin H. Müser
  • Wolf B. Dapp
  • Romain Bugnicourt
  • Philippe Sainsot
  • Nicolas Lesaffre
  • Ton A. Lubrecht
  • Bo N.J. Persson
  • Kathryn Harris
  • Alexander Bennett
  • Kyle Schulze
  • Sean Rohde
  • Peter Ifju
  • W. Gregory Sawyer
  • Thomas Angelini
  • Hossein Ashtari Esfahani
  • Mahmoud Kadkhodaei
  • Saleh Akbarzadeh
  • Jiunn-Jong Wu
  • Georg Vorlaufer
  • András Vernes
  • Soheil Solhjoo
  • Antonis I. Vakis
  • Robert L. Jackson
  • Yang Xu
  • Jeffrey Streator
  • Amir Rostami
  • Daniele Dini
  • Simon Medina
  • Giuseppe Carbone
  • Francesco Bottiglione
  • Luciano Afferrante
  • Joseph Monti
  • Lars Pastewka
  • Mark O. Robbins
  • James A. Greenwood
This paper summarizes the submissions to a recently announced contact-mechanics modeling challenge. The task was to solve a typical, albeit mathematically fully defined problem on the adhesion between nominally
at surfaces. The surface topography of the rough, rigid substrate, the elastic properties of the indenter, as well as the short-range adhesion between indenter and substrate were specified so that diverse quantities of interest, e.g., the distribution of interfacial stresses at a given load or the mean gap as a
function of load, could be computed and compared to a reference solution. Many different solution strategies were pursued, ranging from traditional asperity-based models via Persson theory and brute-force computational approaches, to real-laboratory experiments and all-atom molecular dynamics simulations of a model, in which the original assignment was scaled down to the atomistic scale. While each submission contained satisfying answers for at least a subset of the posed questions, efficiency, versatility, and accuracy differed between methods, the more precise methods being, in general, computationally more complex. The aim of this paper is to provide both theorists and experimentalists with benchmarks to decide which method is the most appropriate for a particular application and to gauge the errors associated with each one.
Original languageEnglish
JournalTribology Letters
Volume65
Issue number4
StateE-pub ahead of print - 16-Aug-2017

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