The aim of this thesis is the design, modeling as well as the analysis of stress and structural deformation. The weightlifting barbell was designed and the solutions for different functions were provided. After having designed the weightlifting barbell and provided the solutions for different functions, a Solidwork model was made. After CAD modeling, stress analyis was performed. Weightlifting barbell was then treated as a stationary axis. Two analysis methods were adopted and the results were then compared. The experimental method was performed in Solidworks software. The barbell mesh was then generated and stress deformation was determined with finite element method. The second method adopted was a classical analytical method. A static barbell model was used to calculate internal barbell forces and stress and other elements. Finally, the results of both methods were compared and the differences and deviations established.
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