MAXIMUM COMPONENTS OF STRESS Given Oxx ,yy , Oxy from equilibrium transformation relations Compute Oxx ,yy ,Oxy for any angle or max/min max/min normal shear Take (0) =0 Take a (oxy ) =0 solve Find Op Find a, use trigonometry 204p substitute back "'(a ) =0 )maxmin "'(a ) = something "'(a ) = 0 'y (a, ) = 0'xy )max/min (repeat for Ony) "' (a, ) = something