The ring tensile test was developed specifically for a particular tube geometry in mind. The width of the ring was chosen ad hoc. Some basic modeling has been performed to interpret the results of this test geometry.
The objective of this work is to elevate this work to the next level. Different geometries, meaning tube diameter, tube thickness and ring width should be investigated. In addition, how the result is influenced by altering the mechanical properties, contact properties and numerical parameters should be mapped out. Some different geometries may be tested, such as a gauged ring design. The goal of the thesis is to validate a procedure to perform ring tensile tests and to analyze its results in order to extract meaningful mechanical properties. Work may also be extended to testing in different conditions (e.g. temperature with an integrated oven on the testing line) and environment (e.g. liquid metal Pb-Bi using a dedicated testing system).
Ideally, the candidate should have some knowledge in FEM modeling methods, particularly static structural calculations. ANSYS workbench is the preferred environment, but any experience is welcome. Some basic notions of materials science and mechanical properties, as well as some experience with programming in Python for data analysis would be a plus. Training will be provided for the use of material testing machines on which the student is expected to work independently.