Publications
Two BSc theses, both single-author, University of Bologna
Full PDFs are not published here. If you would like to read either one in full, write to me at dejanbekic003@proton.me and I will send it over.
-
Development of a MATLAB tool for the thermoelastic analysis of composite laminates, with FEM comparison
In composite manufacturing, cooling from cure temperature to room temperature introduces residual stresses and strains, because plies expand differently depending on fibre orientation. In unsymmetric laminates this also produces out-of-plane distortion — warpage — which is a recurring production problem.
This work gives the process engineer a MATLAB tool, based on Classical Lamination Theory, that estimates and visualises the strains, curvatures and residual stresses of a laminate under a uniform thermal load; it extends an existing mechanical analysis code to the thermoelastic case. Results are compared against ANSYS finite element simulations on a set of uniform-temperature cases, each chosen to exercise a different part of the calculation, which makes it possible both to assess the tool's reliability and to state explicitly where it stops being valid.
-
Design of a carbon-fibre spring based on the Belleville disc-spring principle
Design of a spring in carbon-fibre reinforced polymer working on the Belleville disc-spring principle, for the suspension of a competition solar vehicle of roughly 700 kg.
The work covers a review of the literature on disc springs and on the use of composites in this application; a preliminary analytical sizing based on Almen–Laszlo theory adapted to quasi-isotropic laminates; a MATLAB tool that automates that sizing; and the design of the parts themselves, with engineering drawings and an assessment of how the system would be manufactured. A ply-by-ply ANSYS model verifies the characteristic curve and the Tsai–Wu strength margin.