Ghent University offers PhD scholarship for a maximum period of 4 years. The research will be carried out at the Soete Laboratory of Ghent University, a team of young and enthusiastic researchers, post-docs and professors. The group focuses on research related to fatigue, fracture, tribology and finite element modelling. This PhD vacancy falls under the research line “Joining and Additive Manufacturing” within the Fracture Mechanics and Fatigue group of Soete Laboratory.
This project aims to provide a better understanding of the “Structural integrity of remanufactured steel components made by Wire+Arc Additive Manufacturing (WAAM)”. The primary focus is on residual stress mitigation and characterization of the mechanical properties of the interface between WAAM deposit and substrate. The first objective is to better understand the effect of process and geometrical parameters on residual stresses. A novel procedure for residual stress quantification based on digital image correlation (DIC) will be developed and benchmarked against other techniques. The second objective is to better understand the WAAM part-substrate interfacial properties and their effect on global integrity. The results of a thorough mechanical characterization (static and dynamic) will support the development of a novel numerical approach considering interfacial strength heterogeneity to predict fatigue life. Finally, the third objective is to study the feasibility of a non-conventional post-deposition treatment (pneumatic impact treatment or PIT) on improving fatigue lifetime.
More than year
25 - 35, 36 - 60
More than year
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