Osec The hydrostatic represented σij = stress for the state of stress MPa by ¤¡j given below is 100 50 50 50 125 75 50 75 75 MPa

A 1-m long steel bar (E = 200 GPa) of 10 x10 mm dimension fixed at one end and free at the other end is heated to 90°C from initially 30°C. What is the normal stress, in MPa, induced in the system due to change in temperature? Use a = 12 x 10-6 per °C. Encode you answer in whole number. Round your answer to 0 decimal places.

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QUESTION 3 UWE The figure below shows the cross section of unsymmetric Bristol I-beam. The I-beam experiences a maximum M=4 kNm sagging bending moment. And the beam is pulled apart with end-loading forces of 20 kN. Calculate the maximum tensile stress the beam experiences. (State your answer to the nearest whole number Mega-Pascals.) 120 mm 60 mm I 40 mm 30 mm 220 mm 30 mm