Influence of external constraint on deformation banding of copper single crystals of {110}&lt;uvw&gt; orientations

Lee, K.C.; Zeng, Yijun; Lee, C.S.

doi:10.1016/s1359-6462(98)00420-5

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…The predicted lattice orientation of the C-, RC-and G-crystal quantitatively agrees with the experimental literature [1,2,3,4,5,6] and it is shown in Figs. 3(a), (b) and (c), respectively.…”

Section: Resultssupporting

confidence: 87%

“…Formation of sub-structural features like shear and deformation band has been observed experimentally in both single-and poly-crystal under homogeneous macroscopic deformation [1,2,3,4,5,6,7]. Depending on the initial crystal orientation, single crystal develops different sub-structure under same loading condition and that has been studied experimentally [1,2,3].…”

Section: Introductionmentioning

confidence: 94%

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Microstructural Modeling of Banding in Single Crystals: 'Stack of Domains' Model

Kumar

2011

MSF

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A rigid-plastic rate-independent crystal plasticity based `stack of domains' model of a single crystal is developed to capture local deformation inhomogeneity and sub-structure formation when subjected to macroscopically homogeneous imposed deformation. This model regards the single crystal as a linear stack of domains with planar shaped domain boundaries. The domains of the model single crystal collectively accommodate the imposed deformation and individual domains maintain velocity and traction continuity with its neighbors. The lattice orientation of individual domains perturbed and that perturbation triggers the inhomogeneity of plastic slip amongst domains. Mobility of domain boundaries relative to the material and a differential hardening law that accounts for the orientational instability of individual domains are also considered in the model. The developed model is applied to predict the formation of banding in initially copper (C), rotated cube (RC) and Goss (G) orientated single crystals when subjected to plane strain deformation and the predictions are compared with the experimental literature.

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Section: Resultssupporting

confidence: 87%

Section: Introductionmentioning

confidence: 94%

Microstructural Modeling of Banding in Single Crystals: 'Stack of Domains' Model

Kumar

2011

MSF

View full text Add to dashboard Cite

show abstract

“…In the G crystal, in agreement with experimental observations (Bauer et al, 1977;Wróbel et al, 1994;Lee et al, 1999) to within a few degrees, no domain is predicted to rotate significantly away from the initial Goss orientation, as shown in Fig. 6(c).…”

Section: G Crystalsupporting

confidence: 87%