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Q1) a) Cite the primary differences between elastic and plastic deformation (6 marks) b) A 20-cm...
(20%) Question 6. The elastic modulus, yield strength and ultimate strength of a certain material afe 110 GPa 2400 MPa and 265 MPal respectively. If a cylindrical bar of this material 380 mm long is subjected to a uniaxial tension test and its length is increased by an amount áf O.50 mm under a tensile load ót 6660 N.At the same time its diameter decreased by0,28 mm Calculate; a) The initial diameter of the bar, (8%) d b) Under an...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...