Tensile Yield Strength of a Material Preprocessed by Simple Shear

Abstract : 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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Article dans une revue
Journal of Engineering Materials and Technology, American Society of Mechanical Engineers, 2016, 138 (3), 〈10.1115/1.4033071〉
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https://hal.univ-lorraine.fr/hal-01515205
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Soumis le : jeudi 27 avril 2017 - 09:59:09
Dernière modification le : mercredi 12 septembre 2018 - 01:26:38

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Cai Chen, Yan Beygelzimer, Laszlo S. Toth, Yuri Estrin, Roman Kulagin. Tensile Yield Strength of a Material Preprocessed by Simple Shear. Journal of Engineering Materials and Technology, American Society of Mechanical Engineers, 2016, 138 (3), 〈10.1115/1.4033071〉. 〈hal-01515205〉

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