A New Approach to Design a Composite Material for Light Mono Leaf Spring Using FEA

Soliman E.M., Tamer E.A., Soheir N.S.


The present work is an attempt to design a mono leaf spring of light composite material. The spring has the same stiffness and load capacity as that of a selected real conventional mono steel leaf spring. A new approach of building and design leaf spring materials consisting of unidirectional E-glass/epoxy composite (UEC) with variable fiber volume fractions is presented. The reinforcing fibers in the polymeric spring matrix have been distributed according to the distribution of stress induced in the leaf spring. Subsequently, an analysis with finite element analysis of the designed leaf springs under bending has been done using ANSYS 14. The proposed models of composite mono leaf spring have shown to be safe with the same stiffness and load capacity of steel conventional one with a reduction in weight 57 % to 61.5 % over the conventional steel leaf spring.


mono leaf spring, composite material, stiffness, load capacity

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