I need the answer as soon as possible Problems sheet O1. (A). A 25mm square cross-section bar of length 300mm carries an axial compressiveload of 50KN. Determine the stress set up in the bar and its change of length when thekad is applied. For the bar material E = 200 GNm.180 MN/m:0.12mm]2. (A). A steel tube, 25 mm outside diameter and 12mm inside diameter, cames an axialtensile load of 40 kN. What will be the stress in the bar? What further increase in loadis possible if the stress in the bar is limited to 225 MN/m? 106 MNAm: 45 kNJ3. (A). Define the terms shear stress and shear strain, illustrating your answer by meansof a simple sketch. Two circular bars, one of brass and the other of steel, are to beloaded by a shear load of 30 kN. Determine the necessary diameter of the bars (a) insingle shear, (b) in double shear, if the shear stress in the two materials must notexceed 50 MN/m' and 100 MN/m respectively.127.6. 19.5, 19.5, 13.8mm)4. (A). Two forkend pieces are to be joined together by a single steel pin of 25mmdiameter and they are required to transmit 50 kN. Determine the minimum cross-sectional area of material required in one branch of either fork if the stress in the forkmaterial is not to exceed 180 MN/m. What will be the maximum shear stress in thepin?[1.39 x 10*m: 50.9MN/m15. (A). A simple turnbuckle arrangement is constructed from a 40 mm outside diametertube threaded internally at each end to take two rods of 25 mm outside diameter withthreaded ends. What will be the nominal stresses set up in the tube and the rods,ignoring thread depth, when the turnbuckle cames an axial load of 30 kN? Assuminga sufficient strength of thread, what maximum load can be transmitted by theturnbuckle if the maximum stress is limited to 180 MN/m'?139.2.61.I MNm2. 88.4 kNI6. (A). A bar ABCD consists of three sections: AB is 25 mm square and 50 mm long, BCis of 20 mm diameter and40 mm long and CD is of 12 mm diameter and 50 mm long.Detemine the stress set up in each section of the bar when it is subjected to an axialtensile load of 20 kN. What will be the total extension of the bar under this koad? Forthe bar material, E = 210GN/m.132.63.7, 176.8 MNm, 0.062mm)7.(A). A steel bar ABCD consists of three sections: AB is of 20mm diameter and 200mm long. BC is 25 mm square and 400 mm long, and CD is of 12 mm diameter and200mm kong. The bar is subjected to an axial compressive load which induces a stressof 30 MN/m on the largest cross-section. Determine the total decrease in the length ofthe bar when the load is applied. For steel E = 210GN/m.10.272 mm.8. Figure (19) shows a special spanner used to tighten screwed components. A torque isapplied at the tommy -bar and is transmitted to the pins which engage into holeslocated into the end of a screwed component.(a) Using the data given in Figure (19) cakulate:(i) the diameter D of the shank if the shear stress is not to exce(ii) the stress due to bending in the tommy-bar,(iii) the shear stress in the pins.19.14mm: 254.6 MN/m: 39.8 MN/m]SON force ccee et e dtanceof 2mm em be en oftommyFigure (19)9-A punch for making holes in steel plates is shown in Figure (la). Assume that apunch having diameter d =20 mm is used to punch a hole in an 8-mm plate, asshown in the cross-sectional view Figure (Ib). If a force P= 110 kN is required tocreate the hole, what is the average shear stress in the plate and the averagecompressive stress in the punch?1P-110KN4-20 mmt-8.0 men(b)Figure (1)

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as per our guidelines I solved 1st question only

1. (A). A 25mm square cross-section bar of length 300mm carries an axial compressive load of 50KN. Determine the stress set up in the bar and its change of length when the load is applied. For the bar material E = 200 GN/m. 180 MN/m:0.12mml