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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:
921244
Report Number(s):
PNNL-SA-57925
Journal ID: ISSN 0255-5476; MSFOEP; KJ0101010; TRN: US200804%%1431
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Materials Science Forum, 553:81-86
Additional Journal Information:
Journal Volume: 553; Journal ID: ISSN 0255-5476
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DEFORMATION; POLYCRYSTALS; COMPUTERIZED SIMULATION; TEXTURE; PLASTICITY; MATHEMATICAL MODELS; FCC LATTICES; large deformation polycrystal viscoplasticity

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. doi:10.4028/www.scientific.net/MSF.553.81.
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. https://doi.org/10.4028/www.scientific.net/MSF.553.81
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. https://doi.org/10.4028/www.scientific.net/MSF.553.81.
@article{osti_921244,
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 = {10.4028/www.scientific.net/MSF.553.81},
url = {https://www.osti.gov/biblio/921244}, journal = {Materials Science Forum, 553:81-86},
issn = {0255-5476},
number = ,
volume = 553,
place = {United States},
year = {2007},
month = {8}
}