5. A hollow cylinder has length 50.0 cm, internal diameter 5.0 cm and external diameter 6.0 cm. A force of magnitude 1.0 kN acts at each end of cylinder so that the cylinder is being compressed. Determine the compression of cylinder. (Ynollow cylinder = 7 x1010 Nm-2) [8.27 x10-6 m]

The truss below is subject to the loads as shown. All of the members are attached at plates and can be treated as pin connected. The truss is attached to the ground at a pin joint at G and a roller at D. The applied load H is 335 N. The applied load Jis 211 N. What is the internal resultant normal force in member CD in N? (tension is positive, compression is negative) E F G A 3 m B |● ● H] 3 m 3 m D 5 m

SECTION B- STRUCTURES-DR LARISA MALYSHEVA QB1 DIRECT STRESS Two round solid bars of different materials are connected (in parallel) and have a common tensile force, P, of 190 kN is applied,ras shown in Figure QB1. For each bar, determine the: a) b) Stress. Strain and Strain in the diameter. Use the following information. Clearly show all your derivations. The original length of each bar = 1.7m. %3D Steel Bar: 32mm Dia. Poisson's Ratio = 0.31 18mm Dia. Young's Modulus = 210 GPa %3D Steel Aluminium Bar Bar Common Connection Aluminium Bar: P = 190 kN Poisson's Ratio = 0.34 Young's Modulus = 68 GPa Fig QB1