Crystal plasticity modeling of texture evolution and heterogeneity in equal channel angular pressing of aluminum single crystal

Lü, Cheng; Deng, Guanyu; Tieu, Anh Kiet; Su, Lihong; Zhu, Hong Tao; Li, Xianghua

doi:10.1016/j.actamat.2011.02.031

Cited by 67 publications

(53 citation statements)

References 44 publications

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“…It has been found that the Bassani and Wu model was able to reflect the hardening of face-centered cubic (FCC) crystals more exactly, and was an accurate predictor of texture. Recently, the Bassani and Wu hardening model has been successfully employed to predict deformation behavior and texture evolution during ECAP [37,38] and HPT [22]. Therefore, in this study, the hardening model of Bassani and Wu was adopted.…”

Section: Crystal Plasticity Constitutive Modelmentioning

confidence: 99%

“…Other parameters were identified by fitting the simulated stress-strain curve with the experimental results of single crystal aluminum [40,41]. These parameters have been validated in the CPFEM simulations of nano-indentation [42], cold rolling [43], and equal-channel angular pressing [37]. In the deformed aluminum material with FCC structure, it is assumed that slips occur on the {111} slip planes along the <110> slip directions.…”

Section: Finite Element Implementationmentioning

confidence: 99%

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Study of Anisotropic Plastic Behavior in High Pressure Torsion of Aluminum Single Crystal by Crystal Plasticity Finite Element Method

et al. 2017

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Abstract:In this study, a crystal plasticity finite element method (CPFEM) model has been developed to investigate the anisotropic plastic behavior of (001) aluminum single crystal during high-pressure torsion (HPT). The distributions of equivalent plastic strain and Mises stress recorded on the sample surface are presented. The directional variations of plastic strain and Mises stress with the development of four-fold symmetry pattern are observed along the sample circumference. The crystallographic orientation evolution along the tangential direction is studied, and the corresponding lattice rotation and slip trace are predicted, respectively. The plastic anisotropy mechanism is discussed in detail based on the theory of crystal plasticity. The simulation results reveal that the differences in slip systems activation (dominant slip and multiple slips) are responsible for the anisotropic plastic deformation in HPT.

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Section: Crystal Plasticity Constitutive Modelmentioning

confidence: 99%

Section: Finite Element Implementationmentioning

confidence: 99%

Study of Anisotropic Plastic Behavior in High Pressure Torsion of Aluminum Single Crystal by Crystal Plasticity Finite Element Method

et al. 2017

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“…Franciosi et al [20] and Lu et al [13] reported that the factor can be chosen as a a = a =1.75, a = 2 and a =2.25 for single crystal aluminium. Three elastic moduli used were C 11 = 112 GPa, C 12 = 66 GPa and C 44 = 28 GPa.…”

Section: Three-dimensional Cpfem Simulation Modelmentioning

confidence: 99%

“…In the present study, we adopted the UMAT framework initially developed by Huang [11] and used Bassani and Wu's [12] formulation of the hardening model which has been described in Ref. [13]. The formulations of the rate-dependent hardening model used in the present study can be expressed as [14]: where γ is the reference (initial) value of the shear strain rate, which is a constant for all slip systems.…”

Section: Three-dimensional Cpfem Simulation Modelmentioning

confidence: 99%

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Numerical comparison between Berkovich and conical nano-indentations: Mechanical behaviour and micro-texture evolution

Liu

Lü

2014

Materials Science and Engineering: A

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A crystal plasticity finite element method (CPFEM) model has been developed to investigate the influence of indenter geometry on the mechanical behaviour and micro-texture evolution during nano-indentation of single crystal aluminium. The developed model has been validated by comparison with experimental observations. The numerical results show that indenter geometry influences the load-indentation depth curve, hardness and elastic modulus significantly. The surface profile, equivalent plastic strain distribution and microtexture evolution during nano-indentation have been analysed in detail.

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Textural Stability during Annealing in Aluminum Subjected to Shear Deformation

Takayama¹,

Hoshina²,

Hamano³

et al. 2013

Pricm

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Crystal plasticity modeling of texture evolution and heterogeneity in equal channel angular pressing of aluminum single crystal

Cited by 67 publications

References 44 publications

Study of Anisotropic Plastic Behavior in High Pressure Torsion of Aluminum Single Crystal by Crystal Plasticity Finite Element Method

Study of Anisotropic Plastic Behavior in High Pressure Torsion of Aluminum Single Crystal by Crystal Plasticity Finite Element Method

Numerical comparison between Berkovich and conical nano-indentations: Mechanical behaviour and micro-texture evolution

Textural Stability during Annealing in Aluminum Subjected to Shear Deformation

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