Properties: Rod 1 8F D = 40 mm d = 20 mm L = 1.3 meter E = 80 Gpa ROD 1 ROD 2 Rod 2 D = 80 mm d = 20 mm L = 1.0 meters E = 80 Gpa 3F 2. The composite rod shown in the figure is composed of three rods rigidly welded together. Applied forces in terms of "F" are exerted in different parts of the composite rod. Compute the maximum safest value of "F" if the allowable total deformation of the composite rod is limited to 0.50 mm only. ROD 3 2F Rod 3 D = 60 mm d = 20 mm L = 1.2 meters E = 80 GPa 7F

A cylindrical bar of steel 9.9 mm (0.3898 in.) in diameter is to be deformed elastically by application of a force along the bar axis. Determine the force that will produce an elastic reduction of 3.0×10-3 mm (1.181 ×10-4 in.) in the diameter. For steel, values for the elastic modulus (E) and Poisson's ratio (v) are, respectively, 207 GPa and 0.30. i N

Determine the compressive force (in lb) in the bars shown after a temperature rise of 173°F if d = 0.015 in. Round off the final answer to five decimal places. Use the following data: Bronze              Aluminum A = 2.24 sq. in          A = 2.78 sq. in  E = 14959726 psi            E = 10594540 psi L = 12.5 in            L = 16.6 in α = 11.61 x 10-6/ °F      α = 12.67 x 10-6/°F

20. A steel section is subjected to a combination of shear and bending actions. The applied shear force is V and the shear capacity of the section is Vs. For such a section, high shear force (as per IS: 800-2007) is defined as A. V> 0.6 Vs B. V> 0.7 Vs C. V> 0.8 Vs D. V> 0.9 Vs