Question: answer questions Question Two 2.1 In an experiment on a thick cylinder of 100 mm external diameter and 50 mm internal diameter, the hoop and

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Question Two 2.1 In an experiment on a thick cylinder of 100 mm external diameter and 50 mm internal diameter, the hoop and longitudinal strains as measured by strain gauges applied to the outer surface of the cylinder were 240 x 107 and 60 x 107 respectively, for an internal pressure of 90 MPq, the external pressure being zero. (a) Determine the actual hoop and longitudinal stresses present in the, cylinder, if E =208 GN/m?2 and v = 0.29. (b) Compare the hoop stress value so obtained with the theoretical value given by the Lame' equations. 2.2 Assume that the above strain readings were obtained for a thick cylinder of 100 mm external diameter but with unknown internal diameter, calculate the internal diameter of the cylinder

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