Design and Analysis of Leaf Spring

A multi-leaf spring is one of the important components of automobile suspension system. Leaves are basically a series of flat plates, usually of elliptical shape. Generally, a multi-leaf spring used in automobile suspension, consists of 2 types of leaves i.e. graduated-length leaves and full-length spring. The current work is an attempt to estimate the magnitude of bending stresses in the above mentioned leaves for a semi-elliptic multi-leaf spring made of steel. A lot of work has been carried out in the context of leaf spring considering its material and a important progress has been observed in the field of weight reduction, improvement of load carrying capacity when he replace the material of the spring by any advanced material like composites as E-glass/epoxy, carbon/epoxy etc. Finally referring to the grades obtained in the studies, the present work proposes a new idea regarding the construction of multi-leaf spring based on practical applications. Dimensions of the multi-leaf spring are taken from practical understanding and calculate dimension manually from standard chart of automobile spring. The leaf spring has modelled in CATIA and the same examined under similar environments using ANSYS (Workbench 16.0).