09:47 ...t01-xythos.content.blackboardcdn.com Sheffield Hallam University SECTION A: SOLID MECHANICS Answer FOUR questio

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09 47 T01 Xythos Content Blackboardcdn Com Sheffield Hallam University Section A Solid Mechanics Answer Four Questio 1 (27.94 KiB) Viewed 32 times

09:47 ...t01-xythos.content.blackboardcdn.com Sheffield Hallam University SECTION A: SOLID MECHANICS Answer FOUR questions ONLY selecting TWO questions from SECTION A 1. (a) The vertical structure ABCD shown in Figure 1(a) is subjected to a system of coplanar forces and a moment. The structure is simply supported at Dwith a frictionless in and is roller-supported at A Sketch the free body diagram (FBD) Take moments about D and hence find the reaction force at support A DO Figure 1(a (12 marks) (b) An assembly of a steel bar enclosed within an aluminium alloy tubes shown in Figure 1). The tube and the bar are of the same initial length. The combination is compressed between two rigid parallel plates by a force of 500 KN. The diameter of the stoel bar is 40 mm, and the inside and outside diameters of the aloy tube are 60 mm and 100 mm respectively. The Young's moduli for steel and aluminium alloy respectively are Es=200 Gm Ex 70 GNm Find the stresses generated in the stoel bar and the aluminium alloy tube F Figure 1(b) (13 marks) TOTAL 125 marks! 3 Sheffield Hallam University For the rural haamared and sanded as San Figur 2