This is a question from the textbook, Example 3.1 from page 132. We are interestedin the displacement of the nodes, the reaction force on the truss, internal forces oneach element and the normal stresses on each element. Use E = 1.9x106 psi, and A= 8 sq.in.500 lb500 lb3 ft3 ft(3)(6)(2)(4)(5)3 ft(1)2

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Answered: This is a question from the textbook,…

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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4. The stepped circular bar shown below is made from aluminum (E = 70 GPa, v = 0.35). Each segment is 400 mm in length. Prior to applying the loads, the bar has the dimensions shown. The structure is axially loaded as shown. Determine the stress in each segment, the maximum stress and its location, the final in length of the structure, and the final diameters of each segment due to the applied loads. All dimensions shown are in mm. Ø 25 40 15 ↑ Fu 300 kN 600 kN 300 kN
QI A rigid bar ABCD is pinned at end A and supported by two cables of equal length at points B and C.The cable at B has nominal diameter D=12 mm and the cable at C has nominal diameter D= 20 mm. IF a load P=30 -dc KN acts at end D of the bar. What is the stresses for the cables at B and C if the temperature rises by 60°C. (E = 140 GPa and a=12 x 10/°C for both cables). -26 to -26- P
The figure shows a flat hanger bar for supporting shop equipment in a factory. The bar is fixed to a support by means of a bolted connection. The main part of the hanging bar is 1.5 inches wide. This width varies up to 3.0 inches. A 1.0-inch diameter bolt transfers the hanger bar load to the two top bracket plates. Determine the allowable stress of the tension load P in the hanger in the following two instances: to. The allowable tensile stress in the main part of the hanger is 16,000 psi. b. The allowable stress load between the hanger bar and the bolt is 26,000 lb/pu.
A horizontal load P is applied to an assembly consisting of two inclined bars, as shown in the figure. The cross-sectional area of bar (1) is 1.30 in.2, and the cross-sectional area of bar (2) is 1.75 in.2. The normal stress in either bar may not exceed 24 ksi. Determine the maximum load P that may be applied to this assembly. Assume dimensions of a=14.5 ft, b=9.0 ft, and c=14.5 ft. Determine the allowable force F1 in member (1) and the allowable force F2 in member (2).
Axial loads are applied with rigid bearing plates to the solid cylindrical rods shown in the figure. The diameter of aluminum rod (1) is 2.50 in., the diameter of brass rod (2) is 1.75 in., and the diameter of steel rod (3) is 3.00 in. Determine the axial normal stress in each of the three rods. Assume P = 5 kips, Q = 3 kips, R = 13 kips and 5 = 24 kips. The normal stress is positive if tensile and negative if compressive. σ₁ = Answers: 0₂ = (1) 03 = (2) i i A Q B C D ksi ksi ksi
The figure below shows a simply supported prismatic beam with an applied uniform load. The labeled points A through E are equally spaced (at the quarter points) along the length of the beam and are located at the top of the beam section. Points A and E may be assumed to be located directly above the supports. Rank the points, from greatest to least, on the basis of the absolute value of normal stress in the beam section.
2. The bottom shell of a steel tanker is longitudinally framed. The spacings of transverse floor and longitudinal are 5 m and 0.8 m respectively. The bottom plating is 12 mm thick and the longitudinals are 150 x 10 mm flat bar. For higher- tensile steel, Young's modulus E = 210 kN/mm and yield stress oy = 340 N/mm?. Calculate the Euler buckling stress of the stiffened bottom panel and comment on the result. State any assumptions made. [342 N/mm]
The two wooden boards shown in Figure are connected by a 0.5-in.-diameter bolt. Washers are installed under the head of the bolt and under the nut. The washer dimensions are D = 2 in. and d = 5/8 in. The nut is tightened to cause a tensile stress of 9,000 psi in the bolt. Determine the bearing stress between the washer and the wood. Bolt Washer ANSWER: D psi Washer Nut
A 3-in. by 6-in. steel (E-29,000 ksi) bar (4-foot long) is subjected to the loads shown. Calculate the combined stresses at points A and B (be sure to indicate either tension or compression). Remember, the bar is bending in the strong direction so calculate your I accordingly. 1(1/12) (B)"(H) S=l/c A B. 6" 10,000 lbs 45,000 Ibs

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