Combined loading problem A uniform wood 35 lbft3 bar of rect

Combined loading problem A uniform wood (35 lb/ft^3) bar of rectangular cross section is supported as shown, and a weight W is suspended from its midpoint. If the allowable normal and shear stresses in the wood are sigma_allow = 2250 psi and T_allow = 160 psi, find the max permissible weight W. Be sure to take account of the weight of the bar itself, assuming it to be uniformly distributed along the loan.

Solution

From the above given data weight can be calculated as follws

Weight is = pressure* area

weight= 45N