000004912 001__ 4912
000004912 005__ 20141119144604.0
000004912 04107 $$aeng
000004912 046__ $$k2002-06-02
000004912 100__ $$aChen, Jiun-Shyan
000004912 24500 $$aMESOSCALE MODELING OF GRAIN BOUNDARY MIGRATION UNDER STRESS USING COUPLED FINITE ELEMENT AND MESHFREE METHODS

000004912 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004912 260__ $$bColumbia University in the City of New York
000004912 506__ $$arestricted
000004912 520__ $$2eng$$aThe 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.

000004912 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004912 653__ $$agrain boundary migration, meshfree method, reproducing kernel approximation, double-gird method

000004912 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004912 720__ $$aChen, Jiun-Shyan$$iLu, Hongsheng$$iMoldovan, Dorel$$iWolf, Dieter
000004912 8560_ $$ffischerc@itam.cas.cz
000004912 8564_ $$s293903$$uhttps://invenio.itam.cas.cz/record/4912/files/531.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004912 962__ $$r4594
000004912 980__ $$aPAPER