Ms. Philip dealt in her thesis with the computational modelling of a compound circular disc subjected to uniform temperature field. In the first part, the analytical formulae for a cylindrical body were used to extract displacement and stress field. Three different configurations were analysed – a disc composed from two, three and four materials. In the second section, the plane finite element model in the ANSYS software was created and its outputs were compared with the analytical solutions. Finally, some parametrical studies were performed to prove the validity of the theory and applicability to the problem of the rotating heated body. Ms. Philip attended the consultations regularly, worked proactively and learned programming in Python and scripting in the ANSYS apdl language. I claim that the goals of the thesis have been achieved and I recommend the thesis for defence with a final grade A.

The submitted bachelor’s thesis deals with the computational modelling of compound rotating circular discs subjected to thermo-mechanical loading. The topic is relevant to recent engineering practice, particularly in the design and analysis of rotating components used in turbines, turbochargers, and aerospace applications. The work compares analytical calculations with numerical simulations using finite element method in ANSYS Mechanical.
     The theoretical part provides an introduction to the mechanics of rotating discs and presents the derivation of the governing equations based on elasticity theory. The author demonstrates a good understanding of the fundamental principles of stress, strain, and thermoelastic behaviour. The formulation is logically structured and leads systematically to the development of analytical models for compound discs consisting of two, three, and four parts. However, some equations are introduced without sufficient explanation of intermediate steps. For example, the transition between the governing differential equation and the final stress-displacement relations could be discussed in more details. I miss also some explanation from where the term with rotational velocity in Eq.3.16 originated. Author also use for angular velocity units RPM which is not correct – should be rad/s. All analytical formulas require input in rad/s so it is thus a question what was really considered in the calculations.
      On the other hand a stronger aspect of the thesis lays in the practical part, in the development of analytical computational models and their comparison with finite element simulations performed in ANSYS APDL. The author successfully implemented the mathematical formulation and verified the analytical results using FEM analysis. The agreement between both approaches indicates that the developed models are correct and applicable for the considered problem. Nevertheless, the FEM section would further benefit from a more detailed discussion of e.g. mesh quality, convergence, and modelling assumptions or contact settings, which are missing. Also mixing boundary conditions together with deformation conditions is not fully correct.
     The discussion of results is well organized and demonstrates the student’s ability to evaluate the influence of material composition, overlaps between disc parts, angular velocity, and temperature on the stress and displacement fields. Although the conclusions are generally supported by the results, the discussion is occasionally descriptive and could provide a more detailed engineering interpretation.
      From a stylistic perspective, the thesis is understandable and logically structured. The technical terminology is mostly used correctly (except e.g. the above mentioned angular speed in RPM units), the text contains some grammatical inaccuracies, repetitive formulations, and minor language issues that reduce its overall quality. The bibliography contains relevant sources and their citation is generally satisfactory.
      Overall, the thesis fulfills the assigned objectives and demonstrates that the student is capable of applying theoretical knowledge to solve a practical engineering problem using both analytical and numerical methods. Despite some small shortcomings in the theoretical part, depth of discussion or language quality, the work represents a solid bachelor-level thesis. I thus recommend the work for a defence and I evaluate it by grade "B". Topics for thesis defence:

1. Would it be possible to consider also temperature gradient over the disc radius in the analytical calculations? How the analytical expressions will change?
2. Which contact formulation (type) was used in ANSYS APDL and how did you model the overlap between bodies using the contact?
3. Why you didn’t use a 2D FE model with rotational symmetry (cross-sectional cut of the disc) instead – to capture correctly real thickness of the disc and stresses in Z-direction which will not be generally zero due to a mismatch in CTE between adjacent discs?
4. Which units you really substituted during calculations for angular velocity "omega"?