2. Determine the normal stress in members DF, GH, and GI in the truss shown. The cross- sectional area of each member is 900 mm2. Indicate whether the stresses are tensile (T) or compressive (C). Use 2 decimal places in every solved value. 5 kN A 2 kN B 3 kN C E F K 2 т 2m 2 m 2 m 2.

The section of a thick beam has the dimensions shown in the figure below. Calculate the section properties lz, ly and Izy (Izy = product of inertia) referred to horizontal and vertical axes through the centroid of the section. Refer to Section 6 in your notes for properties of planed sections. Also determine the direct stress at the point A due to a bending moment My = 55 Nm. (Hint: use Page 7-9 in your notes) Ay A 5 mm 20 mm G 5 mm 5 mm 10 mm

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A rod is composed of 3 segments shown in the figure and carries the axial loads, P1=120KN and P2=50KN. If the walls are rigid, determine the stress of bronze, aluminum, and steel in MPa.