Experimental Study and Parametric Design of Impact Testing Methodology

Abstract

Impact testing methodology is finding the applications for determining the impact strength of the different materials. The process implies hammering effect on the work material that determines how much mechanical energy is required for the failure of any material. A part or material's ability to resist impact often is one of the determining factors in the service life of a part, or in the suitability of a designated material for a particular application. Impact resistance can be one of the most difficult properties to quantify. The ability to quantify this property is a great advantage in product liability and safety. In addition to providing information not available from any other simple mechanical test, these tests are quick and inexpensive. This study explores the influence of work material, weight & height of hammer on impact values. The optimal values of these parameters for maximum value of impact energy absorbed have been determined. Taguchi methodology has been used to get optimal values of these parameters. The three levels of each of the factors (work material, weight and height of hammer) have been taken and experiments were designed by applying the taguchi methodology. The L27 Orthogonal array was used and experiments were performed as designed by taguchi method. The results of the experimentation were analyzed analytically as well as graphically using ANOVA and main effect - interaction plots, respectively. The ANOVA tables of the experimental data have been created to calculate the significance of all factors upon each response individually.