Question 1 [25 marks) A thick-walled uniform beam of length 2 m is simply supported as shown in Figure Q1(a). The beam i

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Question 1 25 Marks A Thick Walled Uniform Beam Of Length 2 M Is Simply Supported As Shown In Figure Q1 A The Beam I 1 (50.08 KiB) Viewed 12 times

Question 1 [25 marks) A thick-walled uniform beam of length 2 m is simply supported as shown in Figure Q1(a). The beam is subjected to a concentrated load of 10 kN at its mid-span position between the two supports AB in the same vertical plane and the load is acting vertically downward in the plane of the cross-section as shown in Figure Q1(b). The beam's cross-sectional wall thickness is 15 mm throughout and dimensions are shown in Figure Q1(b). (a) Determine X, Y of the location of the centroid G and hence calculate the cross- sectional properties and I [8 marks) (b) Calculate the maximum tensile and compressive stresses in the cross section due to bending [12 marks] (c) Determine also the neutral axis in the cross section. [5 marks) 90 mm 10 KN 10 KN B 1 y 8 с 15 mm 2 m 100 mm Figure Q1(a) 6 7 X (Not to scale) 70 mm