A wood beam with a cross section 4 x 6 in. is simply supported at A and B. 4 in 4.5 t- 6 in -4 in. Section /-1 The beam has a length of 9 ft and is subjected to point load P= 3.7 kips at mid-span. Calculate the state of stress at point C located 4 in. below the top of the beam and 4.5 ft to the right of support A. Neglect the weight of the beam. (Enter the normal and shear stresses in ksi. For the normal stresses, use the deformation sign convention. For the shear stress, use the sign convention for shear stresses. Consider only the in-plane stresses. Assume that the +x-axis is to the right along the length of the beam and the +y-axi is up along the page.) o, =115.625 ksi Enter a number. v ksi ху -102.78 x ksi

PLEASE INCLUDE COMPLETE FIGURES

The 6 x 12-in. timber beam has been strengthened by bolting to it the steel reinforcement shown. The modulus of elasticity for wood is 1.8 x 106 psi and for steel, 29 × 106 psi. Knowing that the beam is bent about a horizontal axis by a couple of moment M = 454 kip-in., determine the maximum stress in the wood and in the steel. -6 in. M "+ 12 in. CS X 115 The maximum compressive stress in the block of wood is The maximum tensile stress in the steel is ksi. ksi (include a negative sign).

A cantilever beam, a C12 x 30 section, issubjected to its own weight and a point load at B.Find the maximum permissible value of load P at B(kips) if the allowable stress in tension and compressionis σa = 18 ksi.