Microstructure-sensitive weighted probability approach for modeling surface to bulk transition of high cycle fatigue failures dominated by primary inclusions

High cycle fatigue;Surface to bulk transition;Ni-base superalloys;Inclusion

Salajegheh, Nima ; Mechanical Engineering

University:Georgia Institute of Technology

Department:Mechanical Engineering

关键词: High cycle fatigue;    Surface to bulk transition;    Ni-base superalloys;    Inclusion;   

Others  :  https://smartech.gatech.edu/bitstream/1853/44709/1/salajegheh_nima_201108_phd.pdf

美国|英语

来源: SMARTech Repository

【 摘 要 】

In this thesis, we pursue a simulation-based approach whereby microstructure-sensitive finite element simulations are performed within a statistical perspective to examine the VHCF life variability and assess the surface initiation probability. The methodology introduced in this thesis lends itself as a cost-effective platform for development of microstructure-property relations to support design of new or modified alloys, or to more accurately predict the properties of existing alloys.