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

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.

H.W: Design a knuckle joint for a tie rod of a circular section to sustain a maximum pull of 70 kN. The ultimate strength of the material of the rod against tearing is 420 MPa. The ultimate tensile and shearing strength of the pin material are 510 MPa and 396 MPa respectively. Determine the tie rod section and pin section. Take factor of safety = 6.

Problem 3: A Hexagonal bolt connects two members. The joint has a gap 1 = 2 in and the applied load is 2000 lb. Both of the clamped parts are steel. A preload of 90% the bolt's proof strength will be applied first. For this design, an SAE grade 1, 5/16"-18 UNC-2A bolt is chosen made from A307 with rolled threads. Washers are included between the head and the joint, and between the nut and the joint. Determine a suitable length for the bolt? Find its safety factor against yielding and against joint separation. Are these values acceptable?

wormgerar helical sheißtleught 5 7 18.45 mm shaft leugh at 7 15 13.85 mm of 5 and 6 is 100% 4,5,6;7 sporgear - tangeural and axial force. to gear 5,6, 7? applied Find force given implement power = 11 отрит Output power = 0.53 W ourpur speed = 8.9 rev/min number of Death: m = 0.0005 N₂=1 №₂ = 24 M4 = 12 ala N₁₁ = 28 16 = 10 N₂=1445 Make Assumption if not enough information

Table 7-1 11) Determine the available tension capacity (LRFD) of the connection with A36 steel plates. Fy 36 ksi, F. = 58 ksi, U=1. Assume the bearing capacity is adequate. Available Shear Strength of Bolts, kips Nominal Bolt Diameter, d, in. Nominal Bolt Area, in.2 1.23 14 in x 1 in. R 中 Desig- Thread (ksi) | (ksi) Load- Ta ing ASD LRFD nation Cond. ASD LRFD (11) S 33.2 66.4 49.8 27.0 40.5 Group D. 99.6 41.8 62.7 34.0 51.0 D. 83.6 125 41.8 62.7 34.0 51.0 Group 83.6 125 9.5 in x 4 in. P S 51.7 77.5 155 42.0 63.0 4-1 in. A325 N bolts (Group A) (138 in. hole size) 103

Repeat 1.3-10 but use the method of sections to find member forces in AB and DC.

Q4/A/Determine the Maximum axial stress for a 36-ft.joint of 7.625-in.OD.6.625in.ID.39 Ib/ft. N-80 casing with API long, round thread couplings if the casing subjected to a 400 00 0 lbf axial tension in a portion of directional wellbore having a doglog severity of 4/100ft.Compute the maximum axiat stress assuming: 1-Uniform contact between the casing and the borehole wall. 2- Contact between the casing and the borehole wall only at the couplings. 3-The joint strength of the API round thread-couplings. Take ult for N-80-100 000 lbf). utmat

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