The figure shows a connection that employs three SAE grade 4 bolts. The tensile shear load on the joint is4000 lbf. The members are bars of AISI 1020 HR steel. Assume the bolt threads do not extend into the joint.Find the factor of safety for each possible mode of failure. (Refer example problem 8.6 on pg. 445).in ∞in 100in1 ininĐ1in-2 inin-20 UNC55inin

From Table 8-9: for SAE Grade 4 boltsFrom Table A-20: for AISI 1020 HR

Answered: The figure shows a connection that…

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-walled spherical vessel, which is made of AISI C1020, as rolled steel has a diameter of 2.5 ft. The joint efficiency of the vessel is 80%. Internal pressure of the gas inside the vessel varies continuously from 200 psi to 400 psi. If for a Factor of Safety of 1.75 based on Soderberg criterion and the surface of the vessel is polished, find the minimum safe thickness of the vessel.
2) The pillow block shown in Figure 2 is attached to the fixed plate by using two M20x1.5 ISO class 5.8 bolts. The member stiffness per bolt is given as km=3.5kb. The connection is assumed to be permanent. Determine the factor of safety values guarding against yielding, over load and joint seperation. 9 kN Rotating shaft Pillow block Metric (ISO) screw Figure 2
Statement: The figure below shows three cycles of time-varying loading on a double D-ring held together with a single bolt and nut. The figure shows both the bolt tensile force and the member compressive force. QUESTION 1 - Based on the figure, give the minimum and the maximum of the external load, P?
A hollow short compression member, of normalized cast steel where Su = 65 ksi, is to support a load of 1,500 kips with a factor of safety of 8.0 based on the ultimate strength. Determine the outside and inside diameters if Do =2Di.
Required information For a bolted assembly with six bolts, the stiffness of each bolt is kb 2 Mibf/in and the stiffness of the members is km = 13 Mlbf/in per bolt. An external load of 80 kips is applied to the entire joint. Assume the load is equally distributed to all the bolts. It has been determined to use 1/2 in-13 UNC grade 8 bolts with rolled threads. It is desired to find the range of torque that a mechanic could apply to initially preload the bolts without expecting failure once the joint is loaded. Assume a torque coefficient of K = 0.2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the maximum bolt preload that can be applied without exceeding the proof strength of the bolts once the load is applied. The maximum bolt preload that can be applied is Ibf.
Required information A solid square rod is cantilevered at one end. The rod is 0.6 m long and supports a completely reversing transverse load at the other end of ±1.7 kN. The material is AISI 1080 hot-rolled steel. If the rod must support this load for 5 x 104 cycles with a design factor of 1.5, what dimension should the square cross section have? Neglect any stress concentrations at the support end. What will the strength of the metal be at 5 x 104 cycles? The strength of the metal at 5 x 104 will be MPa.
The figure illustrates the connection of a steel cylinder head to a grade 30 cast-iron pressure vessel using N bolts. A confined gasket seal has an effective sealing diameter D. The cylinder stores gas at a maximum pressure pg. For the specifications given in the table for the specific problem assigned, select a suitable bolt length from the preferred sizes in Table A–17, then determine the yielding factor of safety np, the load factor nL, and the joint separation factor n0. See problem number 8-36, and please use the FEA exponential curve-fit for member stiffness.
A rigid coupling with 30 inches of bolt circle diameter transmits a torque of 18,000 lb-in. The coupling material has a yield strength of 90,000 psi. The coupling is fastened by six bolts. Assume design factor of N=3 Calculate the diameter of each bolt.
The eye screw, shown in the figure below is subjected to a force of 35 kN. The material of the screw is steel with ??=355 ???. The safety factor is 1,5. Calculate the minimum diameter of the thread.
Figure Q1 shows a structure under a concentrated force of P. Pins A, B, E, and F are single-shear with a 21-mm diameter. The connections at D is double shear connection with a 21-mm diameter. All pins are made of Aluminum 2014-T6. Based on yield stress, minimum factor of safety is 1.5 for all parts of below structure. Determine maximum concentrated force P, that can apply on the structure. (The cross sectional area of members EA and FB are 330 mm² and 250 mm² respectively). 350 mm 600 mm 900 mm E Copper Brass C83400 F Copper Bronze C86100 Figure Q1 A B 720 mm P D
A joint is subject to a cyclic loading. There is an acceptable preload of 1,200 lbs, and the axial load is fully reversed with an amplitude of 1,600 lb. THe tensile bolt area is 0.160 in^2. Ignore any design factors and (take all nd=1) and assume the loads include the 1.2 bolt factor. If the joint constant is 0.25, the alternate and means axial stress for the bolt are: a) sa = 1,250 psi sm = 0 b) sa = 1,250 psi sm = 8,750 psi c) sa = 2,500 psi sm = 0 d) sa = 2,500 psi sm = 7,500 psi
The static load P= 5000 lbf is applied at I= 10 inch. The value for r=5 inch. The material for bolt is SAE grade 8. Find the size of the bolts. Assume the factor of safety for shear is 2.

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