Design Of Mechanical Test Setup To Find The Endurance Limit Of Coil/Compression Spring
Using Modified Slider-Crank Mechanism

Abstract- A spring is an elastic or resilient body, whose function is to deflect or deform when a load is applied and recover its original shape when the load is removed. The important applications of springs are in application of a force (clutches, brakes etc.), measurement of a force (spring balance), storing energy (clock/toy springs) and absorbing shocks and vibrations (springs in vehicle suspension systems). Fatigue loads are generally cyclic and fluctuating in nature and are much less in magnitude than the yield strength of materials but they tend to have unpredictable behavior due to dissimilar and brutal fracture patterns. To avoid this, determining the endurance limit becomes inevitability. The present paper aims to test the endurance limit of a wide range of coiled/compression springs in the smallest possible time frame using a screw-based modified slider-crank mechanism in a mechanical system.

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