Long And Slim Components Such As Bars, Beams And ColumnsAre Often Subjected To Compressive Forces Along Their Long Axis Owing To TheirFunction. Under The Influence of Critical Compressive Forces, Such ComponentsCan Lose Stability and Deform Laterally. The Technical Term For This Loss OfStability, Which Occurs Suddenly Or Continuously, Is Buckling. In This Case, ItIs Not The Material That Fails But The Component Shape. The Stresses in the BarAre Often Still In the Elastic Region.