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QUESTION 4 (20 POINTS) composite bar shown. Determine the maximum stress in (a) the aluminum, (b) the steel, A steel bar (Ex=210GPa) and an aluminum bar (Eg=70GPa) are bonded together to form the When the bar is bent about a horizontal axis, with M=200Nm. (c) the radius of curvature of the bar. 12 mm 12 mm Aluminium 36 mm
The eccentric axial force P acts at point D, which must be located 25 mm below the top surface of the steel bar shown. For P = 60 kN, determine (a) the depth d of the bar for which the tensile stress at point A is maximum, (b) the corresponding stress at point A. 0 - 25 mm LI Di To /لي 변 -20 min