Finite element simulation of PSB macroband nucleation and propagation in single crystal nickel cycled at low plastic strain amplitudes

2006 ◽  
Vol 22 (7) ◽  
pp. 1336-1366 ◽  
Author(s):  
D. Zhou ◽  
J.C. Moosbrugger ◽  
D.J. Morrison
Keyword(s):  
Finite Element ◽  
Plastic Strain ◽  
Single Crystal ◽  
Finite Element Simulation ◽  
Element Simulation

Simulation of a micro-milling single crystal copper process based on crystal plastic constitutive theory

SIMULATION ◽  
2020 ◽  
Vol 96 (12) ◽  
pp. 957-968
Author(s):  
Luan Yihan ◽  
Meng Xiangyue ◽  
Xue Liang ◽  
Steven Y Liang ◽  
Lu Xiaohong
Keyword(s):  
Finite Element ◽  
Single Crystal ◽  
Simulation Model ◽  
Finite Element Simulation ◽  
Crystal Orientation ◽  
Milling Process ◽  
Micro Milling ◽  
Work Piece ◽  
Single Crystal Copper ◽  
Element Simulation

The anisotropy of single crystal copper and crystal orientation have a significant effect on the micro-milling process. At present, there is no systematic and perfect theory to explain the influence of single crystal orientation on the micro-milling process. Therefore, it is urgent to conduct an in-depth study on the micro-milling process of single crystal copper. In this paper, based on the theory of crystal plasticity, considering the anisotropy of single crystal copper, the VUMAT material subroutine of single crystal copper is programmed by the Fortran language, and the crystal plastic constitution is introduced into the finite element simulation. The model of the micro-milling tool and work-piece is established and meshed. Considering the friction among the tool and the work-piece, material removal, etc., the three-dimensional finite element simulation model of single crystal copper micro-milling process is achieved by ABAQUS software. The validity of the simulation model of the micro-milling process of single crystal copper considering the single crystal plastic constitution is verified by experimental micro-milling forces. The research has explored a feasible way to predict the micro-milling force of single crystal copper, and has provided a reference for revealing the micro-milling mechanism of single crystal materials.

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