Surface Deformation due to Shear and Ploughing in a Halfspace

Journal article


Publication Details

Author(s): Beyer F, Willner K
Journal: Proceedings in Applied Mathematics and Mechanics
Publisher: Gesellschaft für Angewandte Mathematik und Mechanik (GAMM)
Publishing place: Weinheim
Publication year: 2014
Volume: 14
Journal issue: 1
Pages range: 239-240
ISSN: 1617-7061
Language: English


Abstract


Sheet and bulk metal forming are widely used manufacturing methods. The interaction between worktool and workpiece in such a process causes friction which has a remarkable impact on the expended energy of the process. Therefore the influence of friction is important. Friction can be split into shearing and ploughing [1]. Ploughing is the plastic deformation of a soft surface by a hard contact partner. Shear forces are only transferred in the real contact area where material contact occurs. The investigation of the contribution of both ploughing and shearing to the total friction resistance is done with the use of an elasto-plastic halfspace model. The multiscale character of surfaces demands a fine discretization, which results in numerical effort. While a finite element method takes into account both surface and bulk of the contact partners, the halfspace model only regards the contact surfaces and thereby consumes less computing capacity. In order to identify the friction resistance, two rough surfaces get into contact. After full application of the normal load, the surfaces are moved relatively to each other. New asperities of the contact surfaces get into contact and are plastically deformed. These deformations are used to estimate the ploughing effect in dependency on the relative displacement. (© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)



FAU Authors / FAU Editors

Beyer, Florian
Sonderforschungsbereich/Transregio 73 Umformtechnische Herstellung von komplexen Funktionsbauteilen mit Nebenformelementen aus Feinblechen - Blechmassivumformung
Willner, Kai Prof. Dr.-Ing.
Professur für Strukturmechanik


Additional Organisation
Sonderforschungsbereich/Transregio 73, C1: Konstitutives Reibgesetz zur Beschreibung und Optimierung von Tailored Surfaces


How to cite

APA:
Beyer, F., & Willner, K. (2014). Surface Deformation due to Shear and Ploughing in a Halfspace. Proceedings in Applied Mathematics and Mechanics, 14(1), 239-240. https://dx.doi.org/10.1002/pamm.201410107

MLA:
Beyer, Florian, and Kai Willner. "Surface Deformation due to Shear and Ploughing in a Halfspace." Proceedings in Applied Mathematics and Mechanics 14.1 (2014): 239-240.

BibTeX: 

Last updated on 2018-17-10 at 10:40