Performance Comparison of Belleville Washer under Compressive Load using Experimental and Simulation Methods

Abstract

Belleville washers are used in the different engineering applications with standard design parameters. The present work shows the behavior of stress and deflection of the standard Belleville washer compared to the non-standard design parameter as per the industrial needs. Belleville washer (or) disk spring with higher height to thickness ratio i.e. (h/t) is made with a bearing flat at upper Inner Diameter (I.D) and lower Outer Diameter (I.D) with appropriate radius over edge. The Belleville washer design parameter is analyzed by numerical, experimental and LS-Dyna FEM simulation. FEM simulations were performed by using commercial simulation software LS-Dyna to study the behaviors of stress and deflection of the standard and non-standard Belleville washer. During the study it was observed that variation between simulation and experimental results. The difference was reduced by using element formation criterion available in LS-Dyna. Finally the simulation and experiment results were matched by using particular element formation of 8 node hexagonal elements.