Buckling Analysis of Connecting Rod to the Shank Sectional Area Reduction of variable Cross Section by using Finite Element Method

A connecting rod is an engine member which is subjected to alternating direct compressive and tensile forces. Since the compressive forces are much higher than the tensile force, therefore the cross-section of the connecting rod is designed as a different cross section and the rankine formula is used. A connecting rod subjected to a cyclic as well as axial load W may buckle with x-axis as neutral axis in the plane of rotation of the connecting rod, or y-axis is a neutral axis In our analysis, Ansys Static Structural and Linear Buckling was used a model was developed on NX-5. In order to verify the present Ansys model, the slenderness ratio and the critical buckling stress, radius of gyration are compared with the available experimental results present in the literature and the design of X-section connecting rod having different shank cross section width.i.e.26mm,25mm,24mm,23mm,22mm. In this analysis, the simulations of X-section connecting rod at static load of 64.7 KN and the configurations of connecting rod I-section and X-section design are proposed. The results show that converting I-section to X-cross section could reduce the slenderness ratio and increase a radius of gyration simultaneously. The slenderness ratio of the X-section is lower than that of I-section at the static load due to this strength and durability of connecting rod increases. In this analysis an X-section have higher strength than I-section.