Constitutive Modeling of Nanocrystalline Materials with Shear Band

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

512-515

DOI:

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

Citation:

J. Q. Zhou et al., "Constitutive Modeling of Nanocrystalline Materials with Shear Band", Advanced Materials Research, Vols. 311-313, pp. 512-515, 2011

Online since:

August 2011

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Price:

$35.00

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