please choose one real structure and help me out with A1 (Axial Stresses)

Case Study A: (C01, PO1) For Case Study A, the student must define, choose, and idealize any three (3) actual structures/systems that can depict the existing behaviour of the selected structures under the action of forces relevant to the topic mentioned in Table 1. The idealization of the selected structures shall ideally represent the real condition comprises structural dimensions, loadings, boundary conditions (supports), etc. Students also must classify relevant parameters and analyze each of the selected structures to exemplify the deformation in solid mechanics for the chosen structures/systems subjected to the topic listed in Table 1. Finally, students must prepare a comprehensive report that comprises an actual and idealized picture of the selected structures/systems, analysis discussion. The report shall include a graphical illustration with a supportive fundamental theory, and a detailed explanation of the selected structures' correlation to the chosen topic. (NOTE: Be sure to define any assumption made clearly for the report). Table 1: List of parameters Case Study A1 A2 A3 A4 A5 Topic Axial Stresses Bending Stresses Shear Stresses Torsion of Circular Shafts Transformation of stresses using Mohr Circle (15 Marks) Case Study A: (C01, PO1) For Case Study A, the student must define, choose, and idealize any three (3) actual structures/systems that can depict the existing behaviour of the selected structures under the action of forces relevant to the topic mentioned in Table 1. The idealization of the selected structures shall ideally represent the real condition comprises structural dimensions, loadings, boundary conditions (supports), etc. Students also must classify relevant parameters and analyze each of the selected structures to exemplify the deformation in solid mechanics for the chosen structures/systems subjected to the topic listed in Table 1. Finally, students must prepare a comprehensive report that comprises an actual and idealized picture of the selected structures/systems, analysis discussion. The report shall include a graphical illustration with a supportive fundamental theory, and a detailed explanation of the selected structures' correlation to the chosen topic. (NOTE: Be sure to define any assumption made clearly for the report). Table 1: List of parameters Case Study A1 A2 A3 A4 A5 Topic Axial Stresses Bending Stresses Shear Stresses Torsion of Circular Shafts Transformation of stresses using Mohr Circle (15 Marks)