Fabrication and experimentation of FRP helical spring

International Conference on Advances in Materials and Manufacturing Applications 2016

Ekanthappa, J.^1 ; Shankar, G.S. Shiva^1 ; Amith, B.M.^1 ; Gagan, M.^1

Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumakuru, Karnataka

572 103, India^1

关键词: Component weight;    Elastic strain energy;    High specific strength;    Spring stiffness;    Steel coil springs;    Strength parameters;    Vehicle suspension systems;    Weight reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012098/pdf
DOI  :  10.1088/1757-899X/149/1/012098

来源: IOP

【 摘 要 】

In present scenario, the automobile industry sector is showing increased interest in reducing the unsprung weight of the automobile & hence increasing the fuel Efficiency. One of the feasible sub systems of a vehicle where weight reduction may be attempted is vehicle- suspension system. Usage of composite material is a proven way to lower the component weight without any compromise in strength. The composite materials are having high specific strength, more elastic strain energy storage capacity in comparison with those of steel. Therefore, helical coil spring made of steel is replaceable by composite cylindrical helical coil spring. This research aims at preparing a re-usable mandrel (mould) of Mild steel, developing a setup for fabrication, fabrication of FRP helical spring using continuous glass fibers and Epoxy Resin (Polymer). Experimentation has been conducted on fabricated FRP helical spring to determine its strength parameters & for failure analysis. It is found that spring stiffness (K) of Glass/Epoxy helical-spring is greater than steel-coil spring with reduced weight.