Constitutive Modeling of Nanocrystalline Materials with Shear Band

Jian Qiu Zhou; Shu Zhang; Ying Wang

doi:10.4028/www.scientific.net/AMR.311-313.512

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 311-313Constitutive Modeling of Nanocrystalline Materials...

Constitutive Modeling of Nanocrystalline Materials with Shear Band

Abstract:

In hardening stage, a model was used to study the plastic deformation behaviors of nanocrystalline materials. The material was considered as a composite of grain interior phase and grain boundary (GB) phase. The constitutive equations of the two phases were determined in term of their main deformation mechanisms. In softening stage, a shear band deformation mechanism and the corresponding constitutive relation were presented. Calculation results have shown that the predications fit well with experimental data. The investigation using the ﬁnite-element method (FEM) provided a direct insight into quantifying shear localization effect in nanocrystalline materials.

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Advanced Materials Research (Volumes 311-313)

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512-515

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https://doi.org/10.4028/www.scientific.net/AMR.311-313.512

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Online since:

August 2011

Authors:

Jian Qiu Zhou, Shu Zhang, Ying Wang

Keywords:

Constitutive Model, Deformation Mechanism, Nanocrystalline Material, Plastic Deformation, Shear Band

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