Multi-scale friction modeling for sheet metal forming: The boundary lubrication regime

被引：81

作者：

Hol, J. ^{[1
]}

Meinders, V. T. ^{[2
]}

de Rooij, M. B. ^{[2
]}

van den Boogaard, A. H. ^{[2
]}

机构：

[1] Innprove Solut, NL-7500 AE Enschede, Netherlands

[2] Univ Twente, Fac Engn Technol, Chair Nonlinear Solid Mech, NL-7500 AE Enschede, Netherlands

来源：

TRIBOLOGY INTERNATIONAL | 2015年 / 81卷

关键词：

Boundary lubrication; Ploughing; Multi-scale friction modeling; Sheet metal forming; JUNCTION GROWTH; ASPERITY DEFORMATION; PLASTIC CONTACT; ROUGH SURFACES; STRAIN; SIMULATION; AREA;

D O I：

10.1016/j.triboint.2014.07.015

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A physical based friction model is presented to describe friction in full-scale forming simulations. The advanced friction model accounts for the change in surface topography and the evolution of friction in the boundary lubrication regime. The implementation of the friction model in FE software codes is discussed. Results show that friction coefficients vary in space and time, and depend on local process conditions such as the nominal contact pressure and the plastic strain in the sheet material. The advanced friction model is validated by two small-scale forming processes, proving the enhanced predictive capabilities of FE simulations. The moderate increase in FE computation time, compared to using a Coulomb based friction model, demonstrates the efficiency of the proposed friction model. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：112 / 128

页数：17

共 49 条

[1]

[Anonymous], China-Scotland Signal Image Processing Research Academy

[2] A DISLOCATION MODEL FOR STRESS-STRAIN BEHAVIOUR OF POLYCRYSTALLINE ALPHA-FE WITH SPECIAL EMPHASIS ON VARIATION OF DENSITIES OF MOBILE AND IMMOBILE DISLOCATIONS [J].