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Multi-Scale Friction Modeling for Manufacturing Processes: The Boundary Layer Regime

[+] Author Affiliations
J. Hol, D. K. Karupannasamy

Materials innovation institute (M2i), Delft, the Netherlands

T. Meinders

University of Twente, Enschede, the Netherlands

Paper No. MSEC2012-7298, pp. 1077-1086; 10 pages
doi:10.1115/MSEC2012-7298
From:
  • ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing
  • ASME 2012 International Manufacturing Science and Engineering Conference
  • Notre Dame, Indiana, USA, June 4–8, 2012
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-5499-0
  • Copyright © 2012 by ASME

abstract

This paper presents a multi-scale friction model for large-scale forming simulations. A friction framework has been developed including the effect of surface changes due to normal loading and straining the underlying bulk material. A fast and efficient translation from micro to macro modeling, based on stochastic methods, is incorporated to reduce the computational effort. Adhesion and ploughing effects have been accounted for to characterize friction conditions on the micro scale. A discrete model has been adopted which accounts for the formation of contact patches ploughing through the contacting material. To simulate metal forming processes a coupling has been made with an implicit Finite Element code. Simulations on a typical metal formed product shows a distribution of friction values. The modest increase in simulation time, compared to a standard Coulomb-based FE simulation, proves the numerical feasibility of the proposed method.

Copyright © 2012 by ASME

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