About the Project
While the propagation of relatively long cracks is well understood, the formation of short cracks and their early microstructure-dependent propagation requires more advanced research in order to develop effective life prediction models. This project will aim to model fatigue crack propagation from the nucleation phase (stage I), the transition towards a microstructure-independent crack (stage II) and final failure (stage III) for aerospace alloys.
A multi-scale approach will be developed combining crystal-plasticity finite element modelling to simulate the deformation of microstructures, novel crack propagation simulation techniques and scale-transition algorithms. The model will be informed and validated using full-field strain measurement techniques such as Digital Image Correlation, grain orientation measurements using Electron-Back Scattered Diffraction and new experimental procedures. Fatigue testing will be carried out using the University of Sheffield’s state-of-the-art facilities.
Previous experience / requirements: Finite element modelling, Fracture mechanics
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