Enhancement of a Constitutive Friction Law by Considering Plastic Smoothing of Rough Surfaces in Dependency on the Bulk Stresses

Journal article


Publication Details

Author(s): Beyer F, Löffler M, Willner K, Engel U, Merklein M
Journal: Tribology in Industry
Publisher: University of Kragujevac
Publication year: 2016
Volume: 38
Journal issue: 2
Pages range: 163-175
ISSN: 0354-8996
Language: English


Abstract


The aim of this work is the improvement of a constitutive friction law which has been identified for the specific demands of sheet-bulk metal-forming. The constitutive friction law determines the friction shear stress in dependency on the plastic smoothing of the surface roughness, which also affects the real contact area. An experimental setup is introduced to determine the change of the surface roughness, which is influenced by the tensile bulk stress in the workpiece. In order to model the experimental results, a well-established half-space model is presented and improved to consider strain hardening. The half-space model is used to determine the change of the contact area as a function of the tensile bulk stress. This interdependency is also reflected by the proposed constitutive friction law.



FAU Authors / FAU Editors

Beyer, Florian
Sonderforschungsbereich/Transregio 73 Umformtechnische Herstellung von komplexen Funktionsbauteilen mit Nebenformelementen aus Feinblechen - Blechmassivumformung
Engel, Ulf apl. Prof. Dr.
Lehrstuhl für Fertigungstechnologie
Löffler, Maria
Lehrstuhl für Fertigungstechnologie
Merklein, Marion Prof. Dr.-Ing.
Lehrstuhl für Fertigungstechnologie
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., Löffler, M., Willner, K., Engel, U., & Merklein, M. (2016). Enhancement of a Constitutive Friction Law by Considering Plastic Smoothing of Rough Surfaces in Dependency on the Bulk Stresses. Tribology in Industry, 38(2), 163-175.

MLA:
Beyer, Florian, et al. "Enhancement of a Constitutive Friction Law by Considering Plastic Smoothing of Rough Surfaces in Dependency on the Bulk Stresses." Tribology in Industry 38.2 (2016): 163-175.

BibTeX: 

Last updated on 2019-24-06 at 08:32