Research paper in Failure Analysis Of Without Eye leaf Spring Using FEM

Mechanical Engineering

We know that the spring plays very essential part of every automobile for suspension point of view.leaf spring is the main type of suspension system which is used in many light and heavy vehicals. Leaf spring used in many vehicals due to having some main characteristics which are shown bwlow: 1) Uniformaly Load Distribution 2) Lower Cost 3) Rough Used 4) Esiear In Isolation and Tighly attached working frame Today Every automobile company has been working on increasing the efficiency with reducing the weight without having any load carring capacity. In this paper we would like to review some previous research work performed on the leaf spring by previous researchers for increasing the working condition and capacity with load reduction. In order to analyse the variations in the chemical composition, micro-structural analysis along with material specification has been performed. The failed leaf spring fractured part was analysed by using a visual inspection technique and scanning electron microscope (SEM) analysis. The fatigue life of the proposed leaf spring has increased in comparison with the existing model lifecycles.The paper based on material composition, experimental testing and load (Steady, Dynamic) study etc. Based on the fractography study, it was inferred that the failure of the fractured part was due to the cyclic load. This load lead to fatigue growth on leaf spring of the model truck vehicle. Then finite element analysis of leaf spring was carried out to find out the root cause of the leaf spring suspension system. The failure parameters were also optimized for the truck vehicle during safe operation on the road. The fatigue life of the proposed leaf spring has increased in comparison with the existing model life cycles.

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