Original Paper

Tribology Letters

, Volume 46, Issue 2, pp 101-112

First online:

Crystal Plasticity Finite Modelling of 3D Surface Asperity Flattening in Uniaxial Planar Compression

  • Hejie LiAffiliated withSchool of Mechanical, Materials and Mechatronic Engineering, University of Wollongong
  • , Zhengyi JiangAffiliated withSchool of Mechanical, Materials and Mechatronic Engineering, University of Wollongong Email author 
  • , Dongbin WeiAffiliated withSchool of Mechanical, Materials and Mechatronic Engineering, University of Wollongong

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Abstract

Rate-dependent crystal plasticity constitutive model has been employed into finite element software ABAQUS to simulate surface asperity flattening in uniaxial planar compression. Measured textures and surface roughness are introduced into the 3D surface roughness model. The calculated results show a good agreement with the experimental results. With an increase of reduction, the surface asperity flattening tends to increase, and Goss texture {011} 〈100〉 and brass component {110} 〈112〉 become stronger, whilst the cubic texture {001} 〈100〉 becomes weaker. If the reduction reaches 40%, Schmid in-grain shear band appears and the strain localisation starts. The evolution of surface feature (roughness) shows the obvious sensitivity on the orientation {111} of near-top surface.

Keywords

Surface roughness Hardness Modelling Orientation sensitivity