A simply supported beam is made from 4 planks nailed togethe…
A simply supported beam is made from 4 planks nailed together as shown. The cross section dimension of each wood plank is 1in. X 6 in. The spacing between nails in the beam axial direction is 0.5 in. The allowable shear stress of the wood is 150 psi. The allowable shear force in each nail is 600 N. Calculate the maximum force P can be applied. Please type the maximum force P in the box below.