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Title: Mesoscale modeling of grain boundary migration under stress using coupled finite element and meshfree methods.

Abstract

The process of grain boundary migration involves moving interfaces and topological changes of grain boundary geometry. This can not be effectively modeled by Lagrangian, Eulerian, or arbitrary Lagrangian Eulerian finite element formulation when stress effect is considered. A coupled finite element and meshfree approach is proposed for modeling of grain boundary migration under stress. In this formulation, the material grid carries material kinematic and kinetic variables, whereas the grain boundary grid carries grain boundary kinematic variables. The material domain is discretized by a reproducing kernel partition of unity with built-in strain discontinuity across the grain boundaries. The grain boundaries, on the other hand, are discretized by the standard finite elements. This approach allows an arbitrary evolution of grain boundaries without continuous remeshing.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
795811
Report Number(s):
ANL/MSD/CP-107772
TRN: US200213%%13
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 15th ASCE Engineering Mechanics Conference, New York, NY (US), 06/02/2002--06/05/2002; Other Information: PBD: 24 May 2002
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; GRAIN BOUNDARIES; MASS TRANSFER; INTERFACES; FINITE ELEMENT METHOD

Citation Formats

Chen, J -S, Lu, H, Moldovan, D, and Wolf, D. Mesoscale modeling of grain boundary migration under stress using coupled finite element and meshfree methods.. United States: N. p., 2002. Web.
Chen, J -S, Lu, H, Moldovan, D, & Wolf, D. Mesoscale modeling of grain boundary migration under stress using coupled finite element and meshfree methods.. United States.
Chen, J -S, Lu, H, Moldovan, D, and Wolf, D. Fri . "Mesoscale modeling of grain boundary migration under stress using coupled finite element and meshfree methods.". United States. https://www.osti.gov/servlets/purl/795811.
@article{osti_795811,
title = {Mesoscale modeling of grain boundary migration under stress using coupled finite element and meshfree methods.},
author = {Chen, J -S and Lu, H and Moldovan, D and Wolf, D},
abstractNote = {The process of grain boundary migration involves moving interfaces and topological changes of grain boundary geometry. This can not be effectively modeled by Lagrangian, Eulerian, or arbitrary Lagrangian Eulerian finite element formulation when stress effect is considered. A coupled finite element and meshfree approach is proposed for modeling of grain boundary migration under stress. In this formulation, the material grid carries material kinematic and kinetic variables, whereas the grain boundary grid carries grain boundary kinematic variables. The material domain is discretized by a reproducing kernel partition of unity with built-in strain discontinuity across the grain boundaries. The grain boundaries, on the other hand, are discretized by the standard finite elements. This approach allows an arbitrary evolution of grain boundaries without continuous remeshing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {5}
}

Conference:
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