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Research Papers

Tensile Yield Strength of a Material Preprocessed by Simple Shear

[+] Author and Article Information
Cai Chen

Laboratory of Excellence on Design of Alloy
Metals for low-mAss Structures (DAMAS),
Université de Lorraine;
Laboratoire d'Etude des
Microstructures et de
Mécanique des Matériaux (LEM3),
UMR 7239,
CNRS/Université de Lorraine,
Metz F-57045, France
e-mail: cai.chen@univ-lorraine.fr

Yan Beygelzimer

Laboratory of Excellence on Design of Alloy
Metals for low-mAss Structures (DAMAS),
Université de Lorraine,
Metz F-57045, France;
Donetsk Institute for Physics and
Engineering named after O.O. Galkin,
National Academy of Sciences of Ukraine,
46 Vernadsky Street,
Kyiv 03142, Ukraine
e-mail: yanbeygel@gmail.com

Laszlo S. Toth

Laboratory of Excellence on Design of Alloy
Metals for low-mAss Structures (DAMAS),
Université de Lorraine;
Laboratoire d'Etude des Microstructures
et de Mécanique des Matériaux (LEM3),
UMR 7239,
CNRS/Université de Lorraine,
Metz F-57045, France
e-mail: laszlo.toth@univ-lorraine.fr

Yuri Estrin

Centre for Advanced Hybrid Materials,
Department of Materials Engineering,
Monash University,
Clayton, VIC 3800, Australia;
Laboratory of Hybrid Nanostructured Materials,
NITU MISIS,
Leninsky prospect 4,
Moscow 119490, Russia
e-mail: yuri.estrin@monash.edu

Roman Kulagin

Institute of Nanotechnology (INT),
Karlsruhe Institute of Technology (KIT),
Hermann-von-Helmholtz-Platz 1,
Eggenstein-Leopoldshafen 76344, Germany
e-mail: kulagin_roma@mail.ru

1Corresponding author.

Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received November 3, 2015; final manuscript received February 17, 2016; published online May 10, 2016. Assoc. Editor: Irene Beyerlein.

J. Eng. Mater. Technol 138(3), 031010 (May 10, 2016) (4 pages) Paper No: MATS-15-1281; doi: 10.1115/1.4033071 History: Received November 03, 2015; Revised February 17, 2016

Modern techniques of severe plastic deformation (SPD) used as a means for grain refinement in metallic materials rely on simple shear as the main deformation mode. Prediction of the mechanical properties of the processed materials under tensile loading is a formidable task as commonly no universal, strain path independent constitutive laws are available. In this paper, we derive an analytical relation that makes it possible to predict the mechanical response to uniaxial tensile loading for a material that has been preprocessed by simple shear and, as a result, has developed a linear strain gradient. A facile recipe for mechanical tests on solid bars required for this prediction to be made is proposed. As a trial, it has been exercised for the case of commercial purity copper rods. The method proposed is recommended for design with metallic materials that underwent preprocessing by simple shear.

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References

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Figures

Grahic Jump Location
Fig. 1

Stress–strain curves obtained for pure copper solid bars in tension (curve no. 1), in torsion (curve no. 2), and in tension after torsion with different magnitudes of the twist (curve no. 3). Curve no. 4 was constructed using Eq. (6).

Grahic Jump Location
Fig. 2

Stress–strain curves in tension obtained without pretorsion (0) and after different amounts of shear in torsion (1: γ  = 1; 2: γ  = 2; 3: γ  = 3; 4: γ  = 4; 5: γ  = 5; and 6: γ  = 6)

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