Modeling of grained heterogeneity with voronoi tessellation in microforming process
- Publication Type:
- Journal Article
- Applied Mechanics and Materials, 2014, 553 pp. 66 - 70
- Issue Date:
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Microforming technology has attracted more and more attention because of its high utilization in almost every field. However, due to size effect, the conventional scale mechanical processing theories could not be applicable. Further, the characteristic of each single grain involved in the deformed area activates to play a significant role in the manufacturing process. In order to reflect and investigate the relationship among these grains better, this paper represents a pre-process modeling method with Voronoi tessellation to reveal the grained heterogeneity of workpiece numerically in order to obtain high accuracy and prediction result in finite element (FE) modelling of microforming process. Corresponding micro V-bending experiments have been carried out, and the experimental results are in good agreement with simulation results in terms of final angles after micro bending with consideration of springback. © (2014) Trans Tech Publications, Switzerland.
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