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Analysis of surface asperity flattening based on two different methods

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Abstract

The stress state is an important parameter in metal forming processes, which significantly influences the strain state and microstructure of products, affecting their surface qualities. In order to make the metal products have a good surface quality, the surface stress state must be optimised. In this study, two classical methods, the upper bound method and the crystal plasticity finite element method, were investigated. The differences between the two methods were discussed in regard to the model, the velocity field, and the strain field. Then the related surface roughness is deduced.

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Authors and Affiliations

  1. Griffith School of Engineering, Griffith University (Gold Coast Campus), Parklands Drive, QLD, 4214, Australia

    Hejie Li & Andreas Öchsner

  2. School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW, 222, Australia

    Hejie Li & Zhengyi Jiang

  3. Faculty of Engineering, North China University of Science and Technology, Hebei, 063000, China

    Guowei Ni

  4. School of Electrical, Mechanical and Mechatronic Systems, University of Technology, Faculty of Engineering and Information Technology, Sydney, NSW, 2007, Australia

    Dongbin Wei

Authors
  1. Hejie Li
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  2. Andreas Öchsner
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  4. Dongbin Wei
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Correspondence to Hejie Li.

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Communicated by Andreas Öchsner.

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Li, H., Öchsner, A., Ni, G. et al. Analysis of surface asperity flattening based on two different methods. Continuum Mech. Thermodyn. 28, 1623–1634 (2016). https://doi.org/10.1007/s00161-016-0496-z

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  • DOI: https://doi.org/10.1007/s00161-016-0496-z

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