高技术通讯2017，Vol.27Issue(3)：285-293,9.DOI:10.3772/j.issn.1002-0470.2017.03.012
金属玻璃切削加载的形变屈服准则与实验验证
The deformation yield criterion of metallic glass in the cutting process and its experimental verification
摘要
Abstract
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.关键词
金属玻璃/屈服形变/屈服准则/切削力/温度修正Key words
metallic glass, yield deformation/yield criterion, cutting force, temperature correction引用本文复制引用
张艳,王咏萱,赵岩,王加春,卢金平,霍德鸿..金属玻璃切削加载的形变屈服准则与实验验证[J].高技术通讯,2017,27(3):285-293,9.基金项目
国家自然科学基金(51675468),河北省自然科学基金(E2012203055/E2016203462)和河北省高等学校科学技术研究(ZD2015023,QN2016121)资助项目. （51675468）
