Design and Fatigue Analysis of Chassis with Different Cross - Sectional Members to Estimate its Life

Chassis is one of the major component of any automotive that carries engine, body and passengers. The chassis are having horizontal and side members. These members are of different cross sections like I - Sections, C - Sections and Box - Sections. Several loads will occurs on chassis like static loads, dynamic loads and impact loads, due to variations and over loads on chassis the chassis may fail and reduces its life. In the present study, it is clear that the chassis are made of C - Section or I - Section for both horizontals and side members. In this project, the chassis are designed with different combinations of cross sections for horizontal member and side member. The 3D CAD model has been generated in CATIA V5 R20 and Finite Element Analysis has been performed in ANSYS Workbench 2021. The static structural and fatigue analysis has been performed to find out static strength and the life of the chassis. In this project, the chassis designed with the combination of I - Section for Side member and Box section for horizontal member can be used for better performance with better design.