This report presents a finite element analysis (FEA) of a round bar assembly's buckling behavior, conducted using ANSYS software. The analysis investigates the buckling load of a three-bar assembly (BC, CD, DE) with varying diameters and lengths, subjected to compressive loads. The study includes four different dimensional configurations, comparing analytical calculations using Euler's beam theory with FEA simulation results. The report details the FEA model setup, boundary conditions, meshing techniques, and post-processing of results, including deformation, stress analysis, and eigenvalue buckling analysis to determine load multipliers. The findings highlight the impact of diameter and length on buckling loads, with a discussion on strain energy calculations and a comparison of analytical and simulated results, along with a 10% difference. The report concludes that the diameter of the round bar significantly influences the buckling load and strain energy, increasing the required buckling load and energy as diameter increases.
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