A uniform beam, 1.5 metre long, is suspended in a horizontal position by two vertical support rods as shown in the figure below. Rod A has a diameter of 12 mm and manufactured from steel with Esteel = 210 GPa. Rod B has a diameter of 16 mm and is made from copper with Ecopper = 105 GPa. This simply supported beam is to carry a motor vehicle engine and gearbox weighing 5,5 kN.
1 2 3 4 5 5.1 Determine the distance ‘x’ from the left-hand support ‘A’ in order for the beam to remain in a horizontal position. /7/
5.2 Calculate the stress in each rod due to the applied load. /4/
5.3 Calculate the movement (extension) of the support wires under this 5.5 kN load. /2/
Will the rods be able to withstand the applied load? Motivate your answer.
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