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

Beyer F, Hauer F, Willner K (2015)

Publication Language: English

Publication Type: Journal article

Publication year: 2015

Journal

Tribology in Industry University of Kragujevac

Publisher: University of Kragujevac

Book Volume: 37

Pages Range: 400-412

Journal Issue: 4

URI: http://www.tribology.fink.rs/journals/2016/2016-2/4.pdf

Open Access Link: http://www.tribology.fink.rs/journals/2016/2016-2/4.pdf

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.

Authors with CRIS profile

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

Additional Organisation(s)

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

Related research project(s)

Constitutive friction law for the description and optimization of tailored surfaces TRR 73: Manufacturing of complex functional components with variants by using a new sheet metal forming process - Sheet-Bulk Metal Forming Jan. 1, 2009 - March 31, 2021

How to cite

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.

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