Homework Answers
3. A20-t-tall thin hollow tapered tube of a uniform wall thickness of j in. is used for a light p...
3. A20-t-tall thin hollow tapered tube of a uniform wall thickness of j in. is used for a light pole in a parking lot,as shown in Figure P3 The mean diameter at the bottom is 8 in, and at the top it is 2 in. The weight of the lights on top of the pole is 80 Ib. The pole is made of aluminum alloy with a specific weight of O.1 lbin, a modulus of elasticity E 11,000 ksi, and...
A solid 1.50-in.-diameter brass [G = 6600 ksi] shaft (2) has been stiffened between A and...
A solid 1.50-in.-diameter brass [G = 6600 ksi] shaft (2) has been stiffened between A and B by the addition of an aluminum-alloy tube (1). The tube has an outside diameter of D1 2.50 in., a wall thickness of t10.10 in., a length of L 12 in., and a shear modulus of G- 3900 ksi. The tube is attached to the brass shaft by means of rigid flanges welded to the tube and to the shaft. (The thickness of the...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
3. A20-t-tall thin hollow tapered tube of a uniform wall thickness of j in. is used for a light pole in a parking lot,as shown in Figure P3 The mean diameter at the bottom is 8 in, and at the top it is 2 in. The weight of the lights on top of the pole is 80 Ib. The pole is made of aluminum alloy with a specific weight of O.1 lbin, a modulus of elasticity E 11,000 ksi, and...
A solid 1.50-in.-diameter brass [G = 6600 ksi] shaft (2) has been stiffened between A and B by the addition of an aluminum-alloy tube (1). The tube has an outside diameter of D1 2.50 in., a wall thickness of t10.10 in., a length of L 12 in., and a shear modulus of G- 3900 ksi. The tube is attached to the brass shaft by means of rigid flanges welded to the tube and to the shaft. (The thickness of the...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
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