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ANALYSIS OF CRACK INITIATION BY MICROMECHANISM OF DUCTILE FRACTURE IN STRUCTURAL STEEL
Rakin Marko Cvijović Zorica Grabulov Vencislav Blačić Ivo Zrilić Milorad Putić Slaviša
In the presented paper a micromechanical model based on a particular flow criterion of a porous solid has been applied. In this study crack initiation in the smooth specimen made of steel 22 NiMoCr 3 7 has been analyzed; the micromechanical model was incorporated into the finite element (FE) program. Initial data related to non-metallic inclusions were determined by the quantitative optical microscopy. The study was performed within the scope of ESIS TC8 Numerical Round Robin on Micromechanical Models, Phase II, Task A. …
Ključne reči: Ductile fracture of structural steel, micromechanical model, finite element method. |