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Title: Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity

Abstract

In this work, we propose a comparison between two different approaches for the simulation of the large deformation response and crystallographic texture evolution in polycrystals. The first approach is the well-know self-consistent scheme. For this, we used the Visco-Plastic-Self-Consistent (VPSC) approach. The second approach is based on a recently developed intermediate modeling. In a first part of this paper, we present the VPSC model. In a second part, we define the intermediate linear modeling which is based on a linear combination of Taylor and Sachs models using a weight parameter. For the comparison of these two approaches, we present different results in the case of uniaxial tests for an FCC polycrystal for different values of the weight parameter for the intermediate modeling and for different formulations of the macroscopic moduli in the self-consistent model.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
962041
Report Number(s):
PNNL-SA-50761
VT0505000; TRN: US200920%%209
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: 2nd International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties: Materials Science Forum, 553:81 - 86
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DEFORMATION; DIFFUSION; HEAT TRANSFER; MASS TRANSFER; MICROSTRUCTURE; POLYCRYSTALS; TEXTURE; VISCOSITY; PLASTICITY; MATHEMATICAL MODELS; large deformation response and crystallographic texture evolution; Visco-Plastic-Self-Consistent (VPSC) approach

Citation Formats

M'Guil, S M, Ahzi, Said, Youssef, H, Gracio, Jose, and Khaleel, Mohammad A. Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity. United States: N. p., 2007. Web.
M'Guil, S M, Ahzi, Said, Youssef, H, Gracio, Jose, & Khaleel, Mohammad A. Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity. United States.
M'Guil, S M, Ahzi, Said, Youssef, H, Gracio, Jose, and Khaleel, Mohammad A. 2007. "Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity". United States.
@article{osti_962041,
title = {Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity},
author = {M'Guil, S M and Ahzi, Said and Youssef, H and Gracio, Jose and Khaleel, Mohammad A},
abstractNote = {In this work, we propose a comparison between two different approaches for the simulation of the large deformation response and crystallographic texture evolution in polycrystals. The first approach is the well-know self-consistent scheme. For this, we used the Visco-Plastic-Self-Consistent (VPSC) approach. The second approach is based on a recently developed intermediate modeling. In a first part of this paper, we present the VPSC model. In a second part, we define the intermediate linear modeling which is based on a linear combination of Taylor and Sachs models using a weight parameter. For the comparison of these two approaches, we present different results in the case of uniaxial tests for an FCC polycrystal for different values of the weight parameter for the intermediate modeling and for different formulations of the macroscopic moduli in the self-consistent model.},
doi = {},
url = {https://www.osti.gov/biblio/962041}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {8}
}

Conference:
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