Modelling Study of Deformation Texture and Plastic Heterogeneity at Grain Boundaries and Triple Junctions
A CPFE model was used for an assessment of the assumptions used by the ALAMEL model concerning grain interactions. A finite element mesh was constructed for a multicrystal consisting of four grains. There were 17496 integration points per grain. The main goal was to capture the complex nature of the plastic fields in the vicinity of the grain boundaries. The distribution of strain rates, both along and perpendicular to the grain boundaries, confirms that the basic assumptions of the ALAMEL model are qualitatively correct, except at triple junctions. Splitting of one of the grains was occasionally observed, which has also been observed experimentally.
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
P. van Houtte et al., "Modelling Study of Deformation Texture and Plastic Heterogeneity at Grain Boundaries and Triple Junctions", Materials Science Forum, Vols. 638-642, pp. 190-195, 2010