An Intermediate Viscoplastic Model for Deformation Texture Evolution in Polycrystals

S. M'Guil; Saïd Ahzi

doi:10.4028/www.scientific.net/MSF.495-497.989

Paper Titles

Local Texture Evolution by Rate-Independent Polycrystal Model Allowing for Coordination of Interacting Crystals
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Influence of Selectivity of Shear Systems on Deformation Texture
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Processing Path Model to Describe Texture Evolution during Mechanical Processing
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Quantitative X-Ray Analysis of Deformation Microtexture within Individual Grains
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An Intermediate Viscoplastic Model for Deformation Texture Evolution in Polycrystals
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Reaction Stress Model and Relaxation of Reaction Stress among the Grains during Tensile Deformation of fcc Metals
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Modeling Texture, Twinning and Hardening Evolution during Deformation of Hexagonal Materials
p.1001

A Dislocation Density Based Constitutive Model for Crystal Plasticity FEM
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Testing Polycrystal Plasticity Models on Observed Lattice Rotations and Dislocation Structures
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HomeMaterials Science ForumMaterials Science Forum Vols. 495-497An Intermediate Viscoplastic Model for Deformation...

An Intermediate Viscoplastic Model for Deformation Texture Evolution in Polycrystals

Abstract:

The aim of this work is to discuss a new non linear intermediate model for large viscoplastic deformations that could predict the texture transition and stress-strain behavior in a range that spans from the upper bound (Taylor) to the lower bound (Sachs or static) estimates. In this model, we introduced a single parameter, f , as a weight function to formulate the proposed intermediate approach which combines the Taylor and Sachs estimates. This formulation leads to an interaction law by the minimization of a tensorial function which depends on the parameter f . For the applications, we focus on the uniaxial tension test. The results for texture evolution in an FCC polycrystal show that a transition between the copper type and brass type textures can be obtained by the proposed non-linear intermediate model.

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Periodical:

Materials Science Forum (Volumes 495-497)

Pages:

989-994

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.495-497.989

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Online since:

September 2005

Authors:

S. M'Guil, Saïd Ahzi

Keywords:

Deformation Texture, Intermediate Non-Linear Model, Texture Transition

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References

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