A 3.2m long bar of 16mm in diameter hangs vertically and has a collar attached at the lower end calculate the max. stress induced when a weight of 80 kg falls fromaheight of 32mm on the collar. If the bar is turned down to half the diameter alond half of its length, what will be the value of maximum stress? E= 205 GPa.
Determine the expression for strain energy stored in a body subjected to simple bending moments with a neat sketch.