4. A steel rod of 3 cm diameter is enclosed centrally in a hollowcopper tube of external diameter 5 cm and internal diameter of 4cm. The composite bar is then subjected to an axial pull of 45 000N. If the length of each bar is equal to 150 mm. Determine(i) The stress in the rod and tube(ii) Load carried by each bar

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Answered: 4. A steel rod of 3 cm diameter is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A thin cylinder of inner radius 500mm and thickness 10mm is subjected to an internal pressure of 5 MPa. The average circumferential (hoop) stress in MPa is
The rectangular bar shown is connected to a support bracket with a 24 mm diameter pin. The width of the rectangular bar is 70 mm and its thickness is 15 mm. The bearing stress in the bar cannot exceed 120 MPa. Determine the maximum value of Pmax that can be supported based solely on consideration of the bearing stress in the bar. Note: This question is not asking about any stresses in the support bracket...just bearing stress in the rectangular bar.
1.2 A steel rod of 30 mm diameter is enclosed centrally in a hollow copper tube of external diameter 40 mm and 5 mm thick. The composite bar is then subjected to an axial pull of 45 kN. If the length of the compound rod is 150 mm, and the elasticity moduli are Est = 200 GPa and Ecu= 100 GPa. determine: 1.2.1 The stresses in the rod and tube 1.2.2 The load carried by the rod and that carried by the tube 1.2.3 The elongation of the compound rod.
(a) Two vertical rods, one of steel and other of copper are each rigidly fixed at the top and 60 cm apart. Diameters and lengths of each of the rod are 3 cm and 3.5 cm, respectively. A crossbar fixed to the rods at the lower ends carried a load of 6000 N such that the crossbar remains horizontal even after loading. Find the stress in each rod and the position of the load on the bar. Take E for the steel as 2 x 10° N/mm² and for copper as 1 x 10° N/mm?.
The rectangular bar shown is connected to a support bracket with a 27 mm diameter pin. The width of the rectangular bar is 90 mm and its thickness is 15 mm. The bearing stress in the bar cannot exceed 120 MPa. Determine the maximum value of Pmax that can be supported based solely on consideration of the bearing stress in the bar. Note: This question is not asking about any stresses in the support bracket.just bearing stress in the rectangular bar. Rectangular bar Support - bracket
- Write the Gilven and what is being asked. .Write your complete solution. -Round off your answers into TWO decimal places -BOX your final answer and don't forget the units.
3 A bar of diameter 25mm has an axial hole 19mm bored out concentric with the outer circumference. The bar is submitted to the following loads simultaneously: (a) An axial tension of 13 kN, (b) A bending moment of 100Nm. Determine the maximum and minimum direct stresses on the section of the bar.
Two solid cylindrical rods (1) and (2) are joined together at flange B and loaded, as shown. The diameter of rod (1) is d1 = 1.66 in. and the diameter of rod (2) is d2 = 2.68 in. Determine the normal stresses in rods (1) and (2). Assume P = 17 kips and Q = 29 kips. Use positive for tensile stress and negative for compressive stress.
A cylindrical tank steel pressure vessel 200mm in radius and 4.0m in length, is subjected to an internal pressure of 3.0 MPa. Determine the thickness of tank (nearest mm) if the following stresses are not to be exceeded: tangential stress of 45 MPa and longitudinal stress of 30 MPa. and also show the free body diagram
1. A 60-mm diameter steel tube with a wall thickness of 3 mm just fits in a rigid hole. Determine the tangential stress developed if an axial compressive load of 12 kN is applied. Use v = 0.30 and E = 200 GPa. Answer: 0 = 6.37 MPa 2. A 200-mm long bronze tube closed at both ends fits without clearance in a 70-mm hole in a rigid block. It has a diameter of 70 mm and a wall thickness of 5 mm. The tube then sustained an internal pressure of 4.5 MPa. Use v = 0.33 and E= 83 GPa. Compute the tangential stress in the tube. Answer: Ot = 5.20 MPa
Two solid cylindrical rods support a load of P = 39 kN, as shown. Rod (1) has a diameter of 16 mm and the diameter of rod (2) is 11 mm. Determine the axial stress in rod 2. Assume a = 2.2 m, b = 4.6 m, c = 2.7 m, and d = 2.4 m. Use positive for tensile stress and negative for compressive stress. Express your answer in MPa rounded to the nearest whole number.
Que 1.23. A steel rod of 3 cm diameter is enclosed centrally in a hollow copper tube of external diameter 5 cm and internal diameter 4 cm. The composite bar is then subjected to an axial pull of 45000 N. If the length of each bar is equal to 15 cm. Determine : i. The stresses in the rod and the tube. ii. Load carried by each rod. E for steel = 200 GPa and for Copper = 100 GPa.

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