A02 Mechanical Property Estimation Accounting for Crystallograin Structure by Multiscale Analysis Method with Use of Discrete Dislocation Mechanics

2006 ◽  
Vol 2006.59 (0) ◽  
pp. 3-4
Author(s):  
Ryo ISHIKAWA ◽  
Ryosuke MATSUMOTO ◽  
Michihiko NAKAGAKI
Keyword(s):  
Mechanical Property ◽  
Multiscale Analysis ◽  
Analysis Method ◽  
Property Estimation ◽  
Discrete Dislocation ◽  
Dislocation Mechanics

Multiscale plasticity modeling: coupled atomistics and discrete dislocation mechanics

2004 ◽  
Vol 52 (4) ◽  
pp. 755-787 ◽  
Author(s):  
L.E. Shilkrot ◽  
Ronald E. Miller ◽  
William A. Curtin
Keyword(s):  
Discrete Dislocation ◽  
Dislocation Mechanics

Study on the Constitutive Model of the ARB Specimen and Simulation for ARB Process

2010 ◽  
Vol 42 ◽  
pp. 391-395
Author(s):  
Zhong Wu ◽  
Li Li Liu ◽  
Guo Zhi Zhang ◽  
Jun Jie Xi
Keyword(s):  
Mechanical Property ◽  
Constitutive Model ◽  
Simulation Method ◽  
Strain Ratio ◽  
Strain Gradient Theory ◽  
Gradient Theory ◽  
Analysis Method ◽  
Roll Bonding ◽  
Element Simulation ◽  
Temperature Strain

The simulation method for ARB(accumulative roll bonding) and the constitutive model of the ARB specimen were studied. Based on the ZA(Zerilli-Armstrong) model, with MSG(mechanism-based strain gradient) theory and Hall-petch principle, considering its temperature, strain ratio and the effect of the texture variation to the mechanical property, its dynamic constitutive model was established, and verified through the experiment. Moreover, the finite element simulation method for ARB process based on the dynamic constitutive model established was proposed and verified through the experiment. The study in the paper provides analysis method and theory foundation for ARB

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