Two vertical forces, each of magnitude P= 22 kips, are applied to a beam of the cross section shown. Determine the maximum tensile and compressive stresses in portion BC of the beam. 8 in. in. 1 in.- 6 in. 1 in. 4 in. C D 60 in. 20 in. 20 in. The maximum tensile stress is The maximum compressive stress is ksi. ksi.

Link AB, of width b = 2 in. and thickness t = 1414 in., is used to support the end of a horizontal beam. The average normal stress in the link is -18 ksi and the average shearing stress in each of the two pins is 12 ksi.  Determine the average bearing stress (ksi). **The way I had solved it was that I used the given normal stress to first find the P force needed to plus into my bearing stress formula. I still however need the diameter. The answer key says to use the given shear stress equation to find the diamter, how do you know to use that and not the shear stress formula again?

A machine component is fabricated from a bent tube as shown below. One part of the tube lies along the z- axis, and the other part is parallel to the y-axis. The outside diameter of the tube is do 122 mm and its inside diameter is dį = 108 mm. A force F = 8.5 kN acts along a line from point to point D. Determine the principal stresses and the absolute maximum shear stresses at points A and B. Note that point A lies along the y-axis and point Blies along the x-axis. Given: • L₁ 258 mm L₂ = 118 mm • L -281 mm LA-602 mm 4 P (α₂₁)A- (₁2) A (Tmax) A L2 Z ²1 00 B L₁7 number (rtol=0,01, atol=1e-05) number (rtol-0.01, atol-1e-05) number (rtol-0.01 atol-le-057 F 0 MPA LA D L3 y 0 0

Two vertical forces, each of magnitude P= 28 kips, are applied to a beam of the cross section shown. Determine the maximum tensile and compressive stresses in portion BC of the beam. 8 in.→ 1 in. 1 in.- 6 in. 1 in. B 4 in. P C D 60 in. 20 in. 20 in. The maximum tensile stress is ksi. The maximum compressive stress is ksi.