Numerical Simulations of Hypoeutectoid Steels under Loading Conditions, Based on Image Processing and Digital Material Representation

摘要

Numerical simulations of material behavior under loading conditions play crucial role in determination of final properties of material, design of production technology, lifecycle modeling, etc. Special interest in this area is devoted to simulations of microstructures with precisely described grains, inclusions or crystallographic orientation, according to the idea of the Digital Material Representation (DMR). The DMR is applied in the present work to simulate the hypoeutectoid steel, which due to presence of Widmannstatten ferrite is characterized by specific properties. The 2D microstructure model is prepared on the basis of the optical microscopy image as a result of image segmentation algorithm. Specific material properties are attached to each microstructure component. Furthermore, the model is equipped with homogenic mesh and processed with the Finite Element (FE) Forge2 software. The results obtained from the simulations are discussed and presented in the paper as well.