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Development of the multi-scale analysis model to simulate strain localization occurring during material processing

Madej, Lukasz, Hodgson, Peter D. and Pietrzyk, Maciej 2009, Development of the multi-scale analysis model to simulate strain localization occurring during material processing, Archives of computational methods in engineering, vol. 16, pp. 287-318, doi: 10.1007/s11831-009-9033-6.

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Title Development of the multi-scale analysis model to simulate strain localization occurring during material processing
Author(s) Madej, Lukasz
Hodgson, Peter D.
Pietrzyk, Maciej
Journal name Archives of computational methods in engineering
Volume number 16
Start page 287
End page 318
Total pages 32
Publisher Springer
Place of publication Dordrecht, Netherlands
Publication date 2009
ISSN 1134-3060
1886-1784
Keyword(s) cold rolling process
numerical simulations
multi scale modeling
micro shear bands
Summary Abstract A detailed description of possibilities given by the developed Cellular Automata—Finite Element (CAFE) multi scale model for prediction of the initiation and propagation of micro shear bands and shear bands in metallic materials subjected to plastic deformation is presented in the work. Particular emphasis in defining the criterion for initiation of micro shear and shear bands, as well as in defining the transition rules for the cellular automata, is put on accounting for the physical aspects of these phenomena occurring in two different scales in the material. The proposed approach led to the creation of the real multi scale model of strain localization phenomena. This model predicts material behavior in various thermo-mechanical processes. Selected examples of applications of the developed model to simulations of metal forming processes, which involve strain localization, are presented in the work. An approach based on the Smoothed Particle Hydrodynamic, which allows to overcome difficulties with remeshing in the traditional CAFE method, is a subject of this work as well. In the developed model remeshing becomes possible and difficulties limiting application of the CAFE method to simple deformation processes are solved. Obtained results of numerical simulaA detailed description of possibilities given by the developed Cellular Automata—Finite Element (CAFE) multi scale model for prediction of the initiation and propagation of micro shear bands and shear bands in metallic materials subjected to plastic deformation is presented in the work. Particular emphasis in defining the criterion for initiation of micro shear and shear bands, as well as in defining the transition rules for the cellular automata, is put on accounting for the physical aspects of these phenomena occurring in two different scales in the material. The proposed approach led to the creation of the real multi scale model of strain localization phenomena. This model predicts material behavior in various thermo-mechanical processes. Selected examples of applications of the developed model to simulations of metal forming processes, which involve strain localization, are presented in the work. An approach based on the Smoothed Particle Hydrodynamic, which allows to overcome difficulties with remeshing in the traditional CAFE method, is a subject of this work as well. In the developed model remeshing becomes possible and difficulties limiting application of the CAFE method to simple deformation processes are solved. Obtained results of numerical simulations are compared with the experimental results of cold rolling process to show good predicative capabilities of the developed model.tions are compared with the experimental results of cold rolling process to show good predicative capabilities of the developed model.
Language eng
DOI 10.1007/s11831-009-9033-6
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2009
Copyright notice ©2009, CIMNE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30025804

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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Created: Thu, 25 Mar 2010, 19:24:07 EST by Sandra Dunoon

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