Applied Statics and Strength of Materials (6th Edition)
6th Edition
ISBN: 9780133840544
Author: George F. Limbrunner, Craig D'Allaird, Leonard Spiegel
Publisher: PEARSON
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Chapter 19, Problem 19.3P
Rework Problem
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Chapter 19 Solutions
Applied Statics and Strength of Materials (6th Edition)
Ch. 19 - Prob. 19.1PCh. 19 - Rework Problem 19.1 assuming a bearing-type...Ch. 19 - Rework Problem 19.1 assuming a bearing-type...Ch. 19 - Compute the allowable tensile load for the...Ch. 19 - Rework Problem 19.4 assuming a bearing-type...Ch. 19 - Rework Problem 19.4 assuming that the bolts are 34...Ch. 19 - Select the number and arrangement of 34 in....Ch. 19 - Calculate the allowable tensile load for the...Ch. 19 - In the connection shown, 14 in. side and end...Ch. 19 - Design the fillet welds parallel to the applied...
Ch. 19 - A fillet weld between two steel plates...Ch. 19 - Design an end connection using longitudinal welds...Ch. 19 - Calculate the allowable tensile load for the butt...Ch. 19 - Calculate the allowable tensile load for the lap...Ch. 19 - Calculate the allowable tensile load for the butt...Ch. 19 - Rework Problem 19.10 assuming that both plates are...Ch. 19 - Rework Problem 19.12 assuming that the angle is an...Ch. 19 - Two ASTM A36 steel plates, each 12 in. by 12 in. ,...Ch. 19 - Rework Problem 19.20 changing the fasteners to 34...Ch. 19 - Calculate the minimum main plate thickness for the...Ch. 19 - A roof truss tension member is made up of 2L6412...Ch. 19 - Rework Problem 19.23 changing the fasteners to six...Ch. 19 - Determine the allowable tensile load that can be...Ch. 19 - The welded connection shown is subjected to an...Ch. 19 - In Problem 19.26, use a 38 in. fillet weld, change...
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- 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.arrow_forward= It is required to design a split muff coupling to transmit 60 kW power at 140 rpm. The shafts, key 420 N/mm²). The yield strength in and clamping bolts are made of plain carbon steel (σyt compression is 160% of the tensile yield strength. The factor of safety for shafts, key and bolts is 5. The number of clamping bolts is 8. The coefficient of friction between sleeve halves and the shaft is 0.3. (i) Calculate the diameter of the shaft. (ii) Specify the length and outer diameter of the sleeve halves. (iii) Find out the diameter of clamping bolts. (iv) Specify the size of key and check the dimensions for shear and compression criteriaarrow_forwardProblem 1: The pin in a Box-Pin coupling is acted upon by a force (F), that varies as random variable due to misalignment as (2, 0.08) kN. The load act at a distance (1) that varies as (25 ± 3) mm. The diameter of the pin (D) is 18 mm. The fillet radius at the pin shoulder is about 1.5 mm. The stress concentration factor due to fatique in bending is thus a random variable kb that could vary from 1.3 to 1.5. The pin is made of steel AISI 4340 with mean endurance strength in bending of 400 MPa, and a standard deviation of 25 MPa. Determine the pin diameter (d), if one pin in every 10000 may be permitted to fail. R1.6 O L Problem (1)arrow_forward
- Q1) A V-belt drive consists of three V-belts in parallel on grooved pulleys of the same size. The angle of groove is 30° and the coefficient of friction 0.12. The cross-sectional area of each belt is 800 mm² and the permissible safe stress in the material is 3 MPa. Calculate the power that can be transmitted between two pulleys 400 mm in diameter rotating at 960 rpm.arrow_forward1. For a bolted assembly with six bolts, the stiffness of each bolt is k, = 3 Mlbf/in and the stiffness of the members is km = 12 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. Assume a torque co-efficient of K = 0.2. a. Determine the maximum bolt preload that can be applied without exceeding the proof strength of the bolts. b. Determine the minimum bolt preload that can be applied while avoiding joint separation. c. Determine the value of torque in units of Ibf-ft that should be specified for preloading the bolts if it is desired to preload to 75% of the proof load. d. Determine the yielding factor of safety for part c). (based on proof strength)arrow_forwardQ(1) :A helical compression spring is to be cycled between 150 lbf and 300 lbf with a 1-in stroke.The number of cycles is low, so fatigue is not an issue. The coil must fit in a 2.1-in diameter hole with a 0.1-in clearance all the way around the spring. Use unpeened oil tempered wire with squared and ground ends. (CLO1) (i) Determine a suitable wire diameter, using a spring index of C=7.(ii) Determine a suitable mean coil diameter.(iii) Determine the necessary spring constant.(iv) Determine a suitable total number of coils.(v) Determine the necessary free length so that if the spring were compressed to its solid length, there would be no yielding.arrow_forward
- repeat problem 8-19 with the bottom aluminum plate replaced by one that is 20 mm thick.arrow_forward3) A double screw (Acme thread angle o = 14.5) mechanism is designed to lift a load of 18,000 lb in such a way that screw is loaded in tension. Use of Safe Factor of safety of 3.2. Select a suitable screw from data table provided in class notes for tensile load and shear load. Limiting tensile and shear stresses are 10,000 psi and 5,500 psi, respectively. Required thickness of Yoke which functions as a nut. It is desired to raise the hatch a total of 30.0 inches in 15 seconds. Use coefficient of friction f= 0.15. List necessary assumptions. Sketch and Label a schematic diagram. Determine a. Nominal major diameter of screw (D) b. Threads per Inch of selected thread (n) c. Thickness of Yoke (h) d. Lead angle (2) e. Torque required to raise the load (Tup) f. Torque required to lower the load (Tdown) g. Efficiency of the screw h. RPM required to operate each screw i. Compute the Total Power required to operate the mechanism.arrow_forwardPlease help. Written on paper not typed on computer or keyboard please. Need help on all questions. Please include all units, steps to the problem and information such as its direction or if it is in compression or tension. Thx.arrow_forward
- 3) To provide a clamping force of 48,000 lb between two components of a machine (Tensile load, ignore bending), A set of six screws is used. The load is equally shared among three screws. Specify suitable standard screw, including grade of the material (Use Table 10.1 and 10.4 from the book to select the standard size screw. SAE Grade 7 type fasteners with UNC thread need to be used.). Clearly write down all the assumptions, and the details of the screw selected. Calculate the torque prescribed.arrow_forwardQ1) A hollow transmission shaft, having an inside diameter 0.6 times the outside diameter, is made of plain carbon steel 40C8 (0,= 380 N/mm2), and the factor of safety is 3. A belt pulley, 1000 mm in diameter, is mounted on the shaft, which overhangs the left-hand bearing by 250 mm. The belts are vertical and transmit power to the machine shaft below the pulley. The tension on the tight and slack sides of the belt are 3 kN and 1 kN respectively, while the weight of the pulley is 500 N. The angle of the wrap of the belt on the pulley is 180° . Calculate the outside and inside diameters of the shaft. 250 P. 1000 f Pzarrow_forwardA flange coupling is to connect two 57 mm shafts. The hubs of the coupling are each 111 mm in diameter and 92mm thick and the flange web are 19 mm thick. Six 16 mm bolts in a 165 mm diameter circle connect the flange.The keyway is 6 mm shorter than the hub’s thickness and key is 14 mm x 14 mm. Coupling is to transmit 45 KW at160 rpm. For all parts, yield point value in shear is one – half the yield value which is 448 MPa. Calculate the forceon the shaftarrow_forward
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