Combined effects of anisotropy and tension–compression asymmetry on the torsional response of AZ31 Mg

Chandola, Nitin; Lebensohn, Ricardo A.; Cazacu, Oana; Revil-Baudard, Benoît; Mishra, Raja K.; Barlat, Frédéric

doi:10.1016/j.ijsolstr.2015.01.001

Cited by 53 publications

(23 citation statements)

References 29 publications

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“…For the Zirconium and the AZ31-Mg alloy under study, the anisotropy parameters of the CPB06 yield criterion were previously identified in [6] and [16], respectively. In those studies, different sets of anisotropy parameters were identified for different levels of the plastic work.…”

Section: Parameters Identification For the Zirconium And Az31mg Alloymentioning

confidence: 98%

“…The CPB06 yield criterion is used in this section to describe the anisotropic behavior of two metallic materials, known for exhibiting strong tension-compression asymmetry: Zirconium [6] and the AZ31-Mg alloy [16]. These materials were selected since the anisotropy parameters for the CPB06 yield criterion were previously determined [6,16].…”

Section: Application To Zirconium and Az31-mg Alloymentioning

confidence: 99%

“…These materials were selected since the anisotropy parameters for the CPB06 yield criterion were previously determined [6,16].…”

Section: Application To Zirconium and Az31-mg Alloymentioning

confidence: 99%

“…Tuninetti et al characterized compression specimens in the three orthogonal directions of the material [13]. In fact, several works have been made for the characterization of both titanium [14,15] and magnesium alloys [16,17], both presenting a HCP crystal structure.…”

Section: Introductionmentioning

confidence: 99%

“…Revil-Baudard et al show that there is a correlation between the Swift phenomenon in torsion and the stress-strain behavior in uniaxial tension and compression [17]. Chandola et al showed that to explain and accurately predict the room-temperature torsional response of a strongly textured AZ31 Mg material it is necessary to account for the combined effects of anisotropy and tension-compression asymmetry at polycrystalline level [16].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Modeling of tension–compression asymmetry and orthotropy on metallic materials: Numerical implementation and validation

Barros

Alves

Oliveira

et al. 2016

International Journal of Mechanical Sciences

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a b s t r a c tThe details concerning the implementation of the yield criterion developed by Cazacu et al. 2006 (CPB06) [1], which accounts for both tension-compression asymmetry and orthotropy of the plastic flow, in the fully implicit FE solver DD3IMP (contraction of 'Deep Drawing 3-D IMPlicit') are presented in this work. The implemented constitutive model is extensively described, including the analytical first and second order derivatives required to the stress update algorithm. A set of anisotropy parameters describing the mechanical behavior of two metallic materials at room temperature, namely Zirconium and AZ31-Mg alloy, are identified with the DD3MAT (contraction for 'Deep Drawing 3-D MATerial') in-house code (Alves, 2004) [2]. The anisotropy parameters are identified for both the CPB06 and the Cazacu and Barlat (2001) (CB2001) [3] yield criteria, in order to emphasize the importance and role of the strength differential effect. The results clearly show that the CPB06 yield criterion is able to accurately describe both the in-plane anisotropy and tension-compression asymmetry, as well a different anisotropic behavior in uniaxial tension and uniaxial compression. The numerical simulation of a four-point bending test is performed, considering different orientations of the beam, i.e. of the hard/soft to deform direction relatively to the load direction, allowing to validate the implementation. The results obtained with the CPB06 show its ability to describe with accuracy the strain fields in the beam's central cross-section, the distribution of the tensile and compressive layers and, consequently, the shift of the neutral layer. The comparison with the results obtained with CB2001 indicates that the strength differential effect affects the final deformed shape of the beam, particularly for materials exhibiting strong tension-compression asymmetry.

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Section: Parameters Identification For the Zirconium And Az31mg Alloymentioning

confidence: 98%

Section: Application To Zirconium and Az31-mg Alloymentioning

confidence: 99%

“…These materials were selected since the anisotropy parameters for the CPB06 yield criterion were previously determined [6,16].…”

Section: Application To Zirconium and Az31-mg Alloymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Modeling of tension–compression asymmetry and orthotropy on metallic materials: Numerical implementation and validation

Barros

Alves

Oliveira

et al. 2016

International Journal of Mechanical Sciences

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Dependence of Microstructure and Hardening Behavior on Torsion Strain and Strain Rate in Extruded AZ31 Rods

Chen

Liu

et al. 2016

Adv Eng Mater

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In this study, the effects of torsion strain and strain rate on microstructure and hardening behavior of extruded AZ31 Mg alloy rods are investigated. Torsion deformation can generate abundant extension twins and dislocations and cause the rotation of c‐axis toward extrusion direction. These microstructures exhibit gradient distributions along the radial direction of torsion‐deformed rods. Torsion deformation can effectively enhance the hardness of AZ31 rods. The gradient microstructure leads to a gradient hardness distribution in torsion‐deformed rods. High strain rates can enhance the hardening effect via torsion deformation by promoting increment of dislocation density.

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Strain-Rate-Based Plastic Potentials for Polycrystalline Materials

Cazacu

Revil-Baudard

Chandola

2018

Solid Mechanics and Its Applications

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Combined effects of anisotropy and tension–compression asymmetry on the torsional response of AZ31 Mg

Abstract: 2016-11-02T18:49:00

Cited by 53 publications

References 29 publications

Modeling of tension–compression asymmetry and orthotropy on metallic materials: Numerical implementation and validation

Modeling of tension–compression asymmetry and orthotropy on metallic materials: Numerical implementation and validation

Dependence of Microstructure and Hardening Behavior on Torsion Strain and Strain Rate in Extruded AZ31 Rods

Strain-Rate-Based Plastic Potentials for Polycrystalline Materials

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