8-29. A shear spring is made from two blocks of rubber,each having a height h, width b, and thickness a. Theblocks are bonded to three plates as shown. If the platesare rigid and the shear modulus of the rubber is G,determine the displacement of plate A when the verticalload P is applied. Assume that the displacement is smallso that & - a tan y - ay.

Given that: The height of the rubber block is =h The width of the rubber block is =b The thickness…

Answered: 8-29. A shear spring is made from two…

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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4–3. The composite shaft, consisting of aluminum, copper, and steel sections, is subjected to the loading shown. Determine the displacement of end A with respect to end D and the normal stress in each section. The cross-sectional area and modulus of elasticity for each section are shown in the figure. Neglect the size of the collars at B and C. *4–4. Determine the displacement of B with respect to C of the composite shaft in Prob. 4–3.
The force P at D causes the rigid bar CBD to rotate by 0 = 0.5°. The flexible cable AB was unstretched before the application of the force. Determine the normal strain in the cable and the horizontal displacement of point D. A 16" D B C -0-- 12" 12" P
The structure is comprised of rigid bars AB and BCD supported by hinges at A and D. A steel rod at C provides additional support to the system. As shown, there is a roller connection between the bars at B. Determine the magnitude of the force P applied as shown if the vertical displacement of point B is limited to 1.5 mm. Neglect the weights of the bars.
7-63. The cotter is used to hold the two rods together. Determine the smallest thickness t of the cotter and the smallest diameter d of the rods. All parts are made of steel for which the failure normal stress is fail 500 MPa and the failure shear stress is fail 375 MPa. Use a factor of safety of (F.S.), = 2.50 in tension and (F.S.), = 1.75 in shear. -d- 30 kN 40 mm d - 30 kN t Prob. 7-63 10 mm =
The bar of negligible weight is supported by two springs,each having a stiffness k = 80 N>m. If the springs are originally unstretched, and the force is vertical as shown,determine the angle theta the bar makes with the horizontal,when the 45-N force is applied to the bar. 1.5 m- 3 m C В 45 N
F=150lb a=6in bd=8in
If the 20-mm-diameter rod is made of A-36 steel and the stiffness of the spring is k = 50 MN>m, determine the displacement of end A when the 60-kN force is applied.
Part of a control linkage for an airplane consists of a rigid member CB and a flexible cable AB Originally the cable is unstretched. Part A If a force is applied to the end B of the member and causes a normal strain in the cable of 0.00485 mm/mm, determine the displacement of point B Express your answer to three significant figures and include appropriate units. AB= μA Value CE ? Units B A 800 mm 600 mm
Problem 2 5-5. The copper pipe has an outer diameter of 40 mm and an inner diameter of 37 mm. If it is tightly secured to the wall at A and three torques are applied to it as shown, determine the absolute maximum shear stress developed in the pipe. 80 N-m 20 N-m 30 N-m

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