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My work focuses on the cold dwell fatigue behaviour of titanium alloys for aerospace applications. Currently pursuing my PhD at the University of Glasgow, I have been working on related projects since 2016. More specifically, I investigate the effect of macroscopic texture of certain Ti64 products on the fatigue behaviour, reaching across the macroscopic and mesoscopic scales. I have experience in fatigue testing, synchrotron experiments, DIC analysis and optical microscopy. Some of my work includes crystal plasticity simulations to deepen our understanding of the fatigue behaviour on the crystal basis.
High-energy X-ray diffraction is used to investigate the evolution of elastic lattice strains in rolled Ti-6Al-4V specimens during cyclic loading in-situ with and without the inclusion of a 120 s dwell period. A 1 mm segment of the gauge section is monitored throughout the first 100 cycles for specimens extracted along the rolling direction (RD), t...
The goal of this project is to develop crystal-plasticity finite element simulations that take grain boundary interactions and anisotropy into account to predict stress concentrations and strain localisation. More importantly, the objective is to investigate the ability of such models to capture the complex mechanism involved in dwell fatigue and the effect that this has on the material. Experiments will validate the behaviour observed in α+β titanium alloys that are currently used in the aerospace sector.