Modeling of deformation and rotation bands and of deformation induced grain boundaries in IF steel aggregate during large plane strain compression |
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| Institution: | 1. Interventional Cardiology Unit, San Raffaele Scientific Institute, Milan, Italy;2. Interventional Cardiology Unit, EMO-GVM Centro Cuore Columbus, Milan, Italy;3. Cardiology Department, New Tokyo Hospital, Chiba, Japan;4. Cardiovascular Sciences, National Heart and Lung Institute, Imperial College London, London, United Kingdom;5. Cardiology Department, Royal Brompton and Harefield hospital NHS Foundation Trust, London, United Kingdom;6. Cardiology Department, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom;1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, PR China;2. Université de Lorraine, CNRS, Arts et Métiers ParisTech, LEM3, F-57000 Metz, France;3. Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Université de Lorraine, F-57070, Metz, France;1. School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907-2088, USA;2. Institute for Strength of Materials, Graz University of Technology, Kopernikusgasse 24, Graz 8010, Austria;3. Civil, Environmental and Architectural Engineering Department, University of Kansas, 1530W. 15th Street, Learned Hall, Lawrence, KS 66045-7609, USA |
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| Abstract: | A computation using crystal plasticity modeling of an actual IF steel aggregate plane strain compression deformation, underlines the formation of different deformation bands morphologies and grain splitting occurrence, already experimentally observed by different authors. The model based on dislocation densities as internal variables, developed in the framework of finite deformation and implemented in the Finite Element Method, is able to capture the main characteristics of different inhomogeneities and to analyze their formation and further development with strain, from the determination of the active and latent slip systems, and also from the quantification of their dislocation densities and corresponding glide rates evolutions. The respective boundary conditions and material properties effects are discussed. |
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