Fatigue lifetime prediction with a validated micromechanical short crack model for the ferritic steel EN 1.4003

Autor:	Ali Riza Durmaz, Erik Natkowski, Sebastian Münstermann, Petra Sonnweber-Ribic
Rok vydání:	2021
Předmět:	Materials science Mechanical Engineering Intergranular corrosion Industrial and Manufacturing Engineering Finite element method Crystal plasticity Cracking Mechanics of Materials Modeling and Simulation Crack initiation Calibration General Materials Science Composite material Parametrization
Zdroj:	International Journal of Fatigue. 152:106418
ISSN:	0142-1123
Popis:	Microstructural short crack (MSC) growth profoundly influences the fatigue lifetime of steels. For finite element simulations with crystal plasticity, a MSC model for industrial application is described for the ferritic steel EN 1.4003. As transgranular cracking is dominant in the early fatigue stages for this material, intergranular crack growth is excluded. Crack data from micro fatigue specimen is used to validate simulated crack paths. With a manual prescription of the crack initiation site, a substantial agreement between the predicted and experimental crack paths is revealed. Using an appropriate calibration strategy for the parametrization of the MSC model, the feasibility for lifetime prediction is also shown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0c54b1941cdfc49b6ddbecc5b9ca9757 https://doi.org/10.1016/j.ijfatigue.2021.106418 Zobrazit plný text záznamu Full Text from ScienceDirect