FLIS. Determine the manimum verge shear stro developed in cach 3/4indiameter bol.

A bolted joint is to have a grip consisting of two 14-mm steel plates and one 14R metric plain washer to fit under the head of the M14 x 2 hex-head bolt, 50 mm long. (Hint: Look up table A-31 and A-33 in the textbook of Shigley's Mechanical Engineering Design, 8th Edition) (a) What is the length of the thread LT for this diameter metric coarse-pitch series bolt? (b) What is the length of the grip l? (c) What is the height H of the nut? (d) Is the bolt long enough? If not, round to the next larger preferred length. (e) What is the length of the shank and the threaded portions of the bolt within the grip?

(4) An electric motor purchased by your employer surprisingly arrived without a keyway in the shaft. The motor has power rating of 7.5kW & 1,800rpm & has a shaft of Ø17mm. It will be used to drive a centrifugal pump using cast iron sheave. Design the square key to be used in the assembly based on maximum bearing & shearing stresses of 580MPa & 370MPa, respectively, and factor of safety of 5.

Q2/ Calculate the maximum axial stress for a 40-ft joint of 11.75-in, 60 lbm/ft, J-55 casing with short threads coupling. Where the casing is subjected to 280000 lb, axial tension load in a portion of a directional wellbore with dogleg severity of 2"/50 ft. In case of: (1)Uniform contant between the casing and the borehole wall. (2)Assuming contant between borehole wall and the casing only at the couplings,andF n+ (3)Calculate the joint setrength of the API round thread couplings.(oult = 75000 psi, wall thickness 0.489-in, Pc= 2660 psi. o yb-952000 lb, Fj-649 000 lbf).

Calculate the maximum tensile stress developed in a 1/4-20 bolt (Major dia = 0.2500" and Root dia = 0.1959"), 3" long, and a head height of 0.1875", if it is subjected to a load of 426 lbs.

For a bolted assembly with 8 bolts, the stiffness of each bolt is k_b = 1.1 N/mm and the stiffness of the members is k_m = 2.8 N/mm at each bolt location. The joint is subject to occasional disassembly for maintenance and should be preloaded accordingly (to 75% of the proof stress). Assume the external load is equally distributed to all the bolts. It has been determined to use M6 × 1 class 5.8 bolts with rolled threads. Determine the maximum safe working load that both limits the stress in the bolts to be below the proof stress and ensures that the members do not come out of compression. Express your answer in units of kilonewtons.

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.

An A-36 steel bolt (AB) is used to snugly clamp a 6061-T6 aluminum sleeve between two rigid platens E and F, as shown below. The bolt has a solid, circular cross section with a diameter d = 61 mm and a thread pitch of 1 mm. The sleeve has a hollow circular cross section with an outer diameter do 250 mm and a wall thickness tw = 15 mm. The nut is then tightened 34 of a turn, which induces stresses in both the bolt and the sleeve. Assume Es = 200 GPa for steel and Ea 68.9 GPa for aluminum. 450 mm F A -250 mm- 500 mm 15 mm (a) Determine the normal stress in the bolt (both magnitude and sign). (b) Determine the normal stress in the sleeve (both magnitude and sign).

A course pitch metric grade 9.8 bolt with a hexagonal nut assembly is used to keep two machined parts of a machine together as shown in the figure below with a maximum external load bolt and bottom member are made of steel, while the top plate is made of wrought aluminum alloy per bolt and portion of member, P = 20 kN. The major diameter of the bolt is 14 mm. Both the (Al 2024-0). Assume the bolts are reusable. Use Est =200 GPa and EAL = 62 GPa a) Determine the stiffnesses of the bolt and members and fraction of load acting on the bolt. C. b) All the static and fatigue factors of safety using Gerber theory? Aluminum 30 Carbon steel 25

The two lever assembly shown below is subject to a static load F = 8250 lb. %3D (a) identical links BD can be made from based on the stress in the middle of each link. Specify the lowest-strength alloy steel from Appendix A-10 that the two (b) is the minimum recommended diameter that the pins can be machined to? The pins at B and D are made from SAE 4140 OQT 900 alloy steel. What What is the bearing stress on the pins at B and D based on the pin (c) diameter you calculated in part (b) above? 9 in 8 in C B Top View A В C B 0.75 in - -0.31 in F 0.31 in Side View Front View