Development of a Constitutive Friction Law based on the Frictional Interaction of Rough Surfaces

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Beyer F, Hauer F, Willner K
Zeitschrift: Tribology in Industry
Verlag: University of Kragujevac
Jahr der Veröffentlichung: 2015
Band: 37
Heftnummer: 4
Seitenbereich: 400-412
ISSN: 0354-8996
Sprache: Englisch


Abstract


Friction has a considerable impact in metal forming. This is in particular true for sheet-bulk metal-forming (SBMF) in which local highly varying contact loads occur. A constitutive friction law suited to the needs of SBMF is necessary, if numerical investigations in SBMF are performed. The identification of the friction due to adhesion and ploughing is carried out with an elasto-plastic half-space model. The normal contact is verified for a broad range of normal loads. In addition, the model is used for the characterization of the occurring shear stress. Ploughing is determined by the work which is necessary to plastically deform the surface asperities of the new area that gets into contact during sliding. Furthermore, the surface patches of common half-space models are aligned orthogonally to the direction in which the surfaces approach when normal contact occurs. For a better reflection of the original surfaces, the element patches become inclined. This leads to a geometric share of lateral forces which also contribute to friction. Based on these effects, a friction law is derived which is able to predict the contact conditions especially for SBMF.



FAU-Autoren / FAU-Herausgeber

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


Zusätzliche Organisationseinheit(en)
Sonderforschungsbereich/Transregio 73, C1: Konstitutives Reibgesetz zur Beschreibung und Optimierung von Tailored Surfaces


Zitierweisen

APA:
Beyer, F., Hauer, F., & Willner, K. (2015). Development of a Constitutive Friction Law based on the Frictional Interaction of Rough Surfaces. Tribology in Industry, 37(4), 400-412.

MLA:
Beyer, Florian, Franz Hauer, and Kai Willner. "Development of a Constitutive Friction Law based on the Frictional Interaction of Rough Surfaces." Tribology in Industry 37.4 (2015): 400-412.

BibTeX: 

Zuletzt aktualisiert 2019-24-06 um 08:32