Finite Element Analysis and Optimization of Composite Leaf Spring for Light Passenger Vehicle

Mr. Sunil Gowda K J, Dr.Chetan Byrappa

Abstract


In the making of fuel efficient vehicle gross weight of the vehicle is biggest enemy for automotive vehicle designers. The engineer’s to way to reduce gross weight of the vehicle is opting a modern engineering material with better material properties such as fiber reinforced polymer composites. When there is need for weight reduction along with better material properties composites are better potential candidates. There are numerous automotive parts which can be with composite. In this present study the simplest part called leaf spring which is responsible for absorb road shocks and vehicle stability has been considered.  In this present work initially reverse engineering to be carried out on existing metal leaf spring to record dimensions and type of leaf sprig.  In next steps there type of composite material has been considered for leaf spring namely E glass epoxy, carbon epoxy and graphite epoxy. The composite optimization has been carried out using optistruct® to find optimal composite material system and after optimizing again stress analysis has been carried out to find stress and displacement. The obtained results good in agreement.


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References


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