Question: An L-shaped bracket lying in a horizontal plane supports a load P = 150 lb (see figure). The bracket has a hollow rectangular cross section

An L-shaped bracket lying in a horizontal plane supports a load P = 150 lb (see figure). The bracket has a hollow rectangular cross section with thickness t = 0.125 in. and outer dimensions b = 2.0 in. and h = 3.5 in. The centerline lengths of the arms are b1 = 20 in. and b2 = 30 in. Considering only the load P, calculate the maximum tensile stress (t, maximum compressive stress (c, and maximum shear stress Tmax at point A, which is located on the top of the bracket at the support.

t0.125 in bi-20 in. h 3.5 in b 30 in b 2.0 in P 150 ltb

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