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Project

Numerical Simulation of Fatigue Fracture in Micro-Sized Electron Beam Melted Parts

Electron Beam Melting (EBM) is a rapidly-developing additive manufacturing technology, which has broad applications prospects in the aerospace and biomedical industries. In these industries, structured components such as lattice structure based on additive manufacturing techniques are extremely promising to achieve lightweight. Successful construction of additively manufactured metallic components for safety-critical applications requires a thorough understanding of metallurgical structures, residual stresses and associated mechanical properties, such as fatigue fracture. For many industrial applications, fatigue-limited design approaches are used to assess integrity of the structures. However, a lack of understanding of fatigue fracture and its relationship to process parameters limits the use of the EBM parts in industry. The goal of this PhD is to propose a numerical methodology to study the effects of different surface and sub-surface features on the fatigue fracture behaviour of micro-sized EBM manufactured parts.

Date:31 Mar 2021 →  Today
Keywords:Electron beam melting, Titanium alloys, Fatigue Fracture, Numerical analysis
Disciplines:Computational materials science
Project type:PhD project