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Lookup NU author(s): Dr Yan Zhao,
Dr Dehong Huo
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© 2017, Executive Office of the Journal. All right reserved. Taking the yield deformation of metallic glass in cutting as the research object, the Mohr-Coulomb (M-C) yield criterion originating from the geotechnical field was adopted to solve the problem that the traditional Tresca criterion and the Mises criterion do not reflect the stress sensitivity of metallic glass. In addition, in view of the temperature sensitivity of metallic glass and high cutting temperature in the cutting process, the M-C yield criterion with temperature correction was applied to the cutting model of metallic glass. The orthogonal experiment on cutting force shows that, in the three cutting force models established respectively based on the traditional yield criterion, the M-C yield criterion without the temperature item, and the M-C yield criterion with temperature correction, the last one's error was smallest (average error of 8.92%). It shows that the M-C yield criterion with temperature correction can be used to describe the deformation process in cutting metallic glasses. The conclusion provides the theoretical foundation for further research on the cutting mechanism of metallic glasses.
Author(s): Zhang Y, Wang Y, Zhao Y, Wang J, Lu J, Huo D
Publication type: Article
Publication status: Published
Journal: Gaojishu Tongxin/Chinese High Technology Letters
Print publication date: 01/03/2017
Acceptance date: 02/04/2016
ISSN (print): 1002-0470
Publisher: Institute of Scientific and Technical Information of China
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