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 19.5P
Rework Problem
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If the maximum permissible shearing stress is 10,000 psi, how many 3/8'' bolts arranged in a 5'' diameter bolt circle are required to transmit 100 hp at 315 rpm through a flanged coupling.
Identify the flange thickness (in mm) of a flange coupling having 6 bolts, that is 10-mm in diameter, with an 80-mm diameter bolt circle, which is used to connect two identical shafts that is 40-mm in diameter. The design shearing stress of the shaft is 20 MPa while the design crushing stress of the flange is 30 MPa.
The rivets are 25-mm in diameter, A502, Grade 1, hot driven, with allowable shearing stress of 120 MPa. Assume the plates are adequate to transfer load to the rivets. P = 40 kN.
1. Which of the following most nearly gives the shearing stress on the most stressed rivet in MPa?
a. 61
b. 68
c. 74
d. 83
2. of the following most nearly gives the maximum eccentricity in mm, if the load P is maintained?
a. 756
b. 670
c. 445
d. 522
3. Which of the following most nearly gives the maximum load P in kN if the eccentricity is maintained?
a. 72
b. 85
c. 68
d. 58
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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- A high-strength steel band saw, 22 mm wide, runs over pulleys 700 mm in diameter. What minimum thickness of the steel band can be used without exceeding a flexural stress of 290? Assume E = 210 GPa. Answer must be in mm.arrow_forwardDetermine the probable bending stress and equivalent bending load in a 1.75-in, 6 x19 steel rope made from 0.098-in wire, when it is used on a 90-in sheave.arrow_forward3. Find the power that can be safely transmitted by a flange type shaft coupling, if it has four equally spaced studs all at a radius of 50 mm from the shaft centre. The mean stud diameters are 12.5 mm, and each stud has a maximum safe working shear stress of 86 MPa. The shaft rotates at 3600 rpm.arrow_forward
- Two short shafts with identical diameters of 38.1 mm are connected by a coupling which is fitted with 4 - bolts on a 100 mm bolt circle. The shaft runs at a speed of 400 rpm. The design shearing stress of the bolts is 12 N/mm and the design compressive stress of flanges is 15 N/mm. What is the power transmitted by the short shaft in kW? A. 24.1 kW B. 22.7 kW C. 26.5 kW D. 28.3 kW What diameter of the bolt should be used? A. 18.32 mm B. 20.64 mm C. 16.28 mm D. 14.46 mm How thick should the flanges be in mm? A. 13.02 mm B. 15.54 mm C. 9.07 mm D. 11.51 mmarrow_forwardQuestion No.15: Design muff coupling to connect two steel shafts transmitting 40 kW at 350 rpm. The material for shafts and key is plain carbon steel for which allowable shear and crushing stresses are 40 MPa and 80 MPa respectively. The material for muff is cast iron for which allowable shear stress is 15 Mpaarrow_forward1. A jack having square threads of 50 mm nominal diameter and 10 mm pitch is supporting a load of 89 kN. A double thread is used and the coefficient of friction maybe as low as 0.10 or as high as 0.15.c. What maximum torque is necessary to lower the load?d. What is the maximum torsional shear stress induced on the screw?arrow_forward
- A 5-mm thick plate of steel is formed into the cross section shown in Fig. P8.13. Locate the shear center for the cross section.arrow_forwardThe ultimate shearing stress of the rivet used to join plates is 22 ksi. For a factor of safety of 2, calculate the safe shearing resistance of a unit strip of a single-riveted lap joint in which the plate thickness of ¼ in, the pitch joint of ¾ in, and the diameter of the rivet hole is 11/16 inch.arrow_forwardA flange coupling connects two 2” diameter shafts. The flanges are fitted with 6 bolts of SAE 1040 steel on a 7” bolt circle. The shafts runs at 300 rpm and transmits 45 hp. Assume a factor of safety of 5, ultimate tension of 70,000 psi, and ultimate shear of 55,000 psi. Determine: a) The torque transmitted, in-lbs b) The force applied per bolt, lbs c) The diameter of the bolt required, in d) The thickness of flanged to be used, inarrow_forward
- A 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_forwardA flanged bolt coupling consists of eight 10 mm diameter steel bolts on a bolt circle 400 mm in diameter, and six 10 mm diameter steel bolts on a concentric bolt circle 300 mm in diameter. What torque can be applied without exceeding a shearing stress of 60 MPa in the bolts?arrow_forwardA high strength steel band saw, 30 mm wide by 0.80 mm thick, runs over pulleys 500 mm in diameter. What maximum flexural stress is developed? What minimum diameter pulleys can be used without exceeding a flexural stress of 500 MPa? Assume E = 300 GPa.arrow_forward
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