The main idea of this study is to do analysis of connecting rod and get idea of stress producing compressive loading. And than give idea about weight reduction opportunities in connecting rod of an I.C. engine by examining two materials, AISI 1040 carbon steel and AISI 4340 alloy steel. This has entailed performing a detailed load analysis. Therefore, this study has deal with two subjects, first, static load and stress analysis of the connecting rod and second optimization for weight reduction

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... nd shape. In this project a static analysis is conducted on a connecting rod of a single cylinder 4-stroke petrol engine. In this project, a connecting rod for I.C. engine was designed by analytical method. On the basis of that design a physical model was modeled in Pro-E (creo parametric 2.0). Structural system of connecting rod has been analyzed using FEA. With the use of FEA von-misses stress, strain, shear stress, deformation, and weight reduction etc, were calculated for a particular loading conditions using FEA Software ANSYS WORKBENCH 14.0. The same work was done on the same design for other different materials. Compared to the former material the new material found to have less weight, stress reduction and better stiffness. After that based on results AISI 4340 alloy steel connecting rod are better than AISI 1045 carbon steel rod.