Experimental investigation on reliable and accurate prediction of buckling analysis of thin cylindrical shells with geometric imperfections

Abstract

The cylindrical shell having a diameter to thickness ratio more than 10 is normally called as thin cylindrical shell. The primary threat to the thin cylindrical shell is axial compressive force. This force leads to buckling and it provokes the failure of shell. Owing to several consequences in terms of loss of injury, property, life & damage of failure incidents, pipeline planners are setting more accentuation both on protection measures against outside impedance and on giving sufficient obstruction against buckling. The universally useful FE code ANSYS is utilized for the improvement of the material disappointment model. A numerical alignment technique is portrayed which empowers the utilization of standard pliable test information for steels and measure of weight as the contribution to the trial arrangement with and without internal pressure. Current work describes the buckling analysis of thin shells and their consequences that arise as a result of geometric imperfections. For experimental purpose beverage can has been selected, and are subjected to manual loading conditions by placing the cans between two discs, and buckling load is determined. Experimental buckling was also calculated for the beverage cans with square and round cutouts and their corresponding deflections have been tabulated. The experimental results are compared with numerical results to identify the deflection, and also confirmation of limit conditions used. The load at which the thin cylindrical shell starts to buckle, yield point and maximum failure load will be determined by the results.