Static Analysis (Analytical, Finite Element Analysis and Experimental Analysis) of Composite Leaf Springs

Abstract

Leaf Springs design and examination is done mathematically using finite element method proceeding with experimentation on (1). Steel and E-Glass Epoxy material of elliptical multi leaf spring of 7 leaves (2). Steel, Al, E-glass epoxy and carbon epoxy materials of level multileaf spring of 9 leaves, leaf springs are the most seasoned type of suspension in automobiles. An exact modelling of the leaf spring is fundamental for rider comfort, breaking execution, vibration attributes, and steadiness. Substituting composite structures for routine metallic structures has numerous advantages as a result of higher specific firmness and strength of composite materials.
The automobile industry has shown extended energy for the supplanting of steel spring with fiber glass composite leaf spring on account of high strength to weight proportion. (1) This work deals with the substitution of conventional steel leaf spring with a Composite leaf spring utilizing E-glass epoxy composite material. The design parameters were chosen and examined with the goal of minimizing weight of the composite leaf spring when compared to the steel leaf spring. The leaf spring was modeled in CATIA V5 and its experimental study was carried out on Loading Frame of Load 6000N using ANSYS 11.0 Multi Physics programming. (2) This work is done on a multi leaf spring of E-Glass Epoxy and Carbon Epoxy having nine leaves utilized by a commercial vehicle, each leaf length, deformation and bending stresses are hypothetically outlined. The modeling as well as analysis of a multileaf spring has been carried out using finite element method. It incorporates two full length leaves in which one is with eyed ends and seven graduated length leaves.
Distinctive types of material are picked like steel, aluminum, carbon epoxy and glass epoxy. The model of the leaf spring has been created in Pro/E 5.0 and introduced in ANSYS-12 for finite element analysis, which are most well-known CAE tools. The FE analysis of the leaf spring has been performed by discretization of the model in infinite nodes and components and refining them under characterized boundary condition. Bending stress and deflection are the target results. A correlation of various material outputs has been done to finish up the low weight optimum model. Experimental Analysis is done on Loading Frame of Load 35000N.