The multi-scale physical and numerical modeling of fracture phenomena in the MgCa0.8 alloy

Authors:
A. Milenin;D. J. Byrska;O. Grydin
Affiliations:
Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Krakow, Poland;Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Krakow, Poland;Institute of Materials Science, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany
Venue:
Computers and Structures
Year:
2011

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Abstract

The MgCa0.8 alloy can be used to produce surgical threads. However, the low plasticity of this alloy causes problems during wire drawing. A numerical model of the drawing process can be used to optimize the deformation parameters. Research has shown that fractures in MgCa0.8 start within grain boundaries; therefore, a model of the drawing process should consider this mechanism. The main purpose of this work is to develop a micro-scale numerical model of fracture in MgCa0.8 using the boundary element method (BEM). Additionally, the potential for using the developed BEM model as a part of the multi-scale model of the drawing process is investigated.