|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Fatigue in Materials: Fundamentals, Multiscale Modeling and Prevention
||Investigation of Neighborhood Effects on Crack Initiation Sites in Different Ti Microstructures
||Vahid Tari, Michael Groeber, Adam Pilchak, Anthony Rollett
|On-Site Speaker (Planned)
Fatigue is a common and important failure mode in aerospace components. Many of these components are made of Titanium alloys because of their excellent mechanical properties. Their fatigue properties depend on the control of microstructure including grain size and morphology. To investigate the effect of varying the microstructure, we used a spectral full field elasto-viscoplastic method based on FFT to simulate the micro-mechanical response. A large number of three-dimensional synthetic input microstructures were generated based on experimental evidence. The results show that critical neighborhoods can be identified based on analysis of crack initiation sites.
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