Effects of texture on shear band formation in plane strain tension/compression and bending

Kuroda, Mitsutoshi; Tvergaard, Viggo

doi:10.1016/j.ijplas.2006.03.014

Cited by 152 publications

(67 citation statements)

References 34 publications

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“…This phenomenon is not observed for the recrystallized material, where the observed texture is very weak and closer to a random texture. In the simulations by Kuroda and Tvergaard, [14] a random texture revealed a much more homogenous deformation to larger strains compared to the fiber texture components. This is supported by the observations of the present work.…”

Section: Discussionmentioning

confidence: 94%

“…Dao and Li [12] concluded that a deformation texture leads to an increased roughening of the surface compared to a random texture. Kuroda and Tvergaard, [14] in their simulations, have systematically investigated how the different texture components influence the surface roughening and shear band formation. Especially, the texture components Bs, Goss, and S, i.e., typical deformation texture components, seem to promote the formation of shear bands independent of the direction of BA.…”

Section: Discussionmentioning

confidence: 99%

“…Shear localization plays a major role in fracture initiation. [12,[14][15][16][17] In anisotropic materials such as rolled and extruded metals, the texture is found to affect the shear band formation as well. Kuroda and Tvergaard, [14] in their finite element analyses, systematically studied the effect of different texture components with respect to strain localization.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Three-Point Bending of Heat-Treatable Aluminum Alloys: Influence of Microstructure and Texture on Bendability and Fracture Behavior

Westermann

Snilsberg

Sharifi

et al. 2011

Metall Mater Trans A

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Three-Point Bending of Heat-Treatable Aluminum Alloys: Influence of Microstructure and Texture on Bendability and Fracture Behavior

Westermann

Snilsberg

Sharifi

et al. 2011

Metall Mater Trans A

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“…1,2,8) As mentioned above, the Taylor factor in a plane strain tension, which consists of outer tensile strain in bending and compressive strain in the thickness direction, is correlated with bendability of the sheet metals. Therefore we evaluate the bendability on the basis of the Taylor factor in the present study.…”

Section: Calculation Of Taylor Factor In Bending Deformationmentioning

confidence: 92%

Prediction of In-Plane Anisotropy of Bendability Based on Orientation Distribution Function for Polycrystalline Face-Centered Cubic Metal Sheets with Various Textures

Inoue

2015

Mater. Trans.

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Bendability of sheet metals is strongly affected by crystallographic orientation and it has recently been found that the bendability has a correlation with the Taylor factor in Al-Mg-Si and Cu-Ni-Si alloy sheets. This paper has proposed an analytical method for predicting in-plane anisotropy of bendability in polycrystalline face-centered cubic metal sheets by using the mean value of Taylor factors for all grains calculated from an orientation distribution function. The calculation was performed on the assumption that a strain condition at the convex surface during bending deformation is close to plane strain tension. Using various ideal orientations with Gaussian distribution and various real textures of annealed aluminum or copper alloys, the normalized Taylor factor, which was defined as a ratio of the mean Taylor factor for a textured material to that for a randomly oriented one, was compared with some known experimental data on bendability at directions of 0°and 90°to the rolling direction. The results clearly showed that bendability was better at the bending direction with a lower normalized Taylor factor. Since the formation of shear bands at the sheet surface causes deterioration of bendability, the present analytical method based on the normalized Taylor factor will have the advantage of giving us a prediction of bendability at arbitrary directions in a sheet, if textures of metal sheets are measured on the surface without polishing by means of X-ray diffraction.

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“…The first one utilizes Taylor-based models (Inal et al, 2002;Kuroda and Tvergaard, 2007;Neale et al, 2003), while the second one uses crystal plasticity theory with explicit representation of the microstructure by use of the finite element method (CP-FEM) (Saai et al, 2010;Rossiter et al, 2010;Hu et al, 2011). Inal et al (2002) and Kuroda and Tvergaard (2007) used a Taylor-based model of crystal plasticity to predict the effect of texture on the formation of shear bands. Neale et al (2003) investigated the effect of throughthickness texture gradients.…”

Section: Introductionmentioning

confidence: 99%

Crystal plasticity finite element simulations of pure bending of aluminium alloy AA7108

et al. 2015

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The crystal plasticity finite element method (CP-FEM) is used to investigate the influence of microstructure on the bending behaviour of the heat treatable aluminium alloy AA7108. The study comprises two materials obtained from the AA7108 aluminium alloy by different thermo-mechanical treatments. The first one is an as-cast and homogenized material consisting of large grains with random texture, while the second one is a rolled and recrystallized material having refined grains with weak deformation texture. The behaviour of the two materials in plane-strain bending is investigated numerically and compared qualitatively to existing experimental data. The crystallographic texture and grain morphology of the materials are explicitly represented in the finite element models. The numerical results display a strong effect of the grain morphology on the bending behaviour, the surface waviness and the development of shear bands. These results are consistent with the experimental observations. The simulations further indicate that crystallographic texture affects the bending behaviour of the rolled and recrystallized material.

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Effects of texture on shear band formation in plane strain tension/compression and bending

Cited by 152 publications

References 34 publications

Three-Point Bending of Heat-Treatable Aluminum Alloys: Influence of Microstructure and Texture on Bendability and Fracture Behavior

Three-Point Bending of Heat-Treatable Aluminum Alloys: Influence of Microstructure and Texture on Bendability and Fracture Behavior

Prediction of In-Plane Anisotropy of Bendability Based on Orientation Distribution Function for Polycrystalline Face-Centered Cubic Metal Sheets with Various Textures

Crystal plasticity finite element simulations of pure bending of aluminium alloy AA7108

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