NANOSCALE CUTTING SIMULATION OF SINGLE CRYSTAL COPPER BASED ON MULTISCALE METHOD

摘要：

A multiscale simulation method based on quasicontinuum (QC) theory was adopted to study the nanometric cutting process of single crystal copper.The cutting mechanisms were analyzed in atomistic view.Dislocation of workpiece in cutting process was examined in detail.The generation and disappearance of dislocation cause the fluctuations of tangential and normal cutting forces during the nanometric cutting process of single crystal copper.In addition,the effects of cutting depth on cutting force had also been investigated.Typical rule for cutting force in nanoscale cutting of single crystal copper was obtained by using multiscale simulation method.By comparison with the results in molecular dynamics (MD) simulation,it is shown that multiscale simulation can increase the modeling size without increasing of time consumption and accurate results can be found in the simulation.

关键词： multi-physics nano-component first principle ferroelectric property

作者: Q.S.BAI H.M.Pen Y.C.Liang

作者单位: School of Mechanical and Electrical Engineering Harbin Institute of Technology,Harbin 150001,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 393-396

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）