A Fundamental Model of Aluminum Single Crystal Behavior with Physical Description of Kinematic Work Hardening

Author(s):  
Afaf Saai ◽  
Laurent Tabourot ◽  
Christophe Déprés ◽  
Herve Louche
2007 ◽  
Vol 550 ◽  
pp. 577-582 ◽  
Author(s):  
Afaf Saai ◽  
Laurent Tabourot ◽  
Christophe Déprés ◽  
Herve Louche

In this paper, we present a fundamental model of FCC single crystal behaviour at room temperature: this model includes kinematic work hardening derived from the elementary description of the collective dislocations density evolution during cyclic loading. This kinematic work hardening is then coupled with the isotropic work hardening mechanism. Using this original model, a simulation of a tensile test on a single crystal sample is carried out in the case of an initial crystal orientation that promotes single glide even at rather large strains. The evolution of resolved shear stresses on the primary and secondary slip systems are interpreted by means of the interaction between the evolution of isotropic and kinematic work hardening variables. The evolution of the model state-variables including applied resolved shear strain, dislocation densities, and critical shear stresses are represented as functions of the evolution of crystalline orientation during plastic deformation.


1965 ◽  
Vol 13 (10) ◽  
pp. 1083-1084 ◽  
Author(s):  
R.R. Hasiguti ◽  
N. Igata ◽  
K. Tanaka

2009 ◽  
Vol 50 (10) ◽  
pp. 2391-2395 ◽  
Author(s):  
Tatsuya Okada ◽  
Atsushi Ikeda ◽  
Daiki Noguchi ◽  
Takashi Yamahata ◽  
Minoru Tagami ◽  
...  

JOM ◽  
1954 ◽  
Vol 6 (2) ◽  
pp. 257-260 ◽  
Author(s):  
A. H. Lutts ◽  
P. A. Beck

JOM ◽  
1955 ◽  
Vol 7 (11) ◽  
pp. 1249-1251
Author(s):  
Y. C. Liu ◽  
W. R. Hibbard

2008 ◽  
Vol 2008 ◽  
pp. 1-7 ◽  
Author(s):  
J. Lin ◽  
X. Y. Niu ◽  
X. F. Shu

In order to explore more mechanical properties of zeolite Ferrierite (FER) single crystal, a method of determining its mechanical properties—nanoindentation reverse analysis—was obtained based on the nanoindentation experiment and numerical simulations, and this will be presented in this paper. The yield stress and the characteristic work-hardening rate were gained if its stress-strain relation was a bilinear constitutive relation. The mechanical parameters obtained by reverse analysis have been compared with ones gained by nanoindentation finite-element numerical simulations.


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