Comparative Analysis of Small Deflection Behavior in Cantilever Beams Using Structural Steel and Aluminum Alloy

This research investigates the deflection change of cantilever beams made of structural steel (S355) and aluminium alloy (6061) under small deflection conditions. The main objective is to compare their performance in several aspects of load carrying capacity, deflection and safety systems through theoretical calculations and Finite Element Analysis (FEA). The research highlights that S355 exhibits higher stiffness and lower deflection compared to 6061 under the same load. However, 6061 demonstrates a higher safety factor, making it more suitable for applications where lightweight and safety margins are prioritized. The results provide insights into material selection for structural and mechanical applications, particularly where trade-offs between deflection and safety must be considered.