Nanoscale Analysis of Plasticity and Fracture of the Sheet Metal Structures

The analysis at nano-scale is important for the modeling of plastic deformation and its structures. We reviewed algorithms at nano-scale using FEM and presented a solution for modeling of such processes and corresponding algorithms. Also, we studied dislocations and avalanches in the deformed body, how they affect the quality, and methods to decrease their affluence on the product. For meshing of the model proposed method is to relate particle size and mechanical properties, which is investigated in the context of plastic deformation. Damage models presented in the paper can be proved useful for the production modeling and manufacturing. Modeling of buckling and plastic deformation proved to be useful to study the phenomenon and can be optimized with the proposed methods. Numerical verification using test benchmarks were conducted to demonstrate flange buckling, its particle measurements, and avalanches in the deformed part to validate propositions.