Applied Statics and Strength of Materials (6th Edition)
6th Edition
ISBN: 9780133840544
Author: George F. Limbrunner, Craig D'Allaird, Leonard Spiegel
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 19, Problem 19.3P
Rework Problem
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Two identical aluminum plates are each 3 in thick, and are compressed with one bolt and nut.
Washers are used under the head of the bolt and under the nut.
Washer properties: steel; ID = 0.531 in; OD = 1.062 in; thickness = 0.095 in
Nut properties: steel; height = 7/16 in
Bolt properties: 1/2 in-13 UNC grade 8
Plate properties: aluminum; E = 10.3 Mpsi; Su = 47 kpsi; Sy = 25 kpsi
(a) Determine a suitable length for the bolt, rounded up to the nearest 1/4 in.
(b) Determine the bolt stiffness.
(c) Determine the stiffness of the members.
In the Bolted Connection shown, find the following by ASD.Specifications:M20 Bolts in standard holes. Nominal hole diameter = 22mmEffective Hole diameter = nominal hole diameter + 2 mmA325 steel boltAssume thread in shear planeFv = 372 MPaProperties of Angle Bar< 125 x 125 x 13 mmA = 3065 mm²x = 36.3 mmy = 36.3 mmFy = 248 MPa , Fu = 410 MPa
1. For angle bars used as bolted tension element connected to another element only on one leg, the effective area Ae = UAn. Where: An = Net area, U = Shear lag factor = 1 – x/L, L= center to center longitudinal distance of extremely located fasteners, X= distance from centroid of angle bar to surface of contact of joined elements. What is the shear lag factor of our angular bar?
a. 0.454
b. 0.9
c. 0.838
d. 0.869
2. Considering RUPTURE of angle bar, what is the allowable force P that the connection can handle if allowable RUPTURE stress in net area of angle bar is Fu/2
a. 463.83 kN…
The width of the belt used if its thickness is 6 mm.
Ans. 261 mm
8. A nylon-core flat belt has an elastomer envelop; is 200 mm wide, and transmits 60 KW at a belt speed
of 25 m/s. The belt has a mass of 2 kg/m of the belt length. The belt is used in a crossed configuration to
connect a 300 mm diameter driving pulley to a 900 mm diameter driven pulley at a shaft spacing of 6 m.
A. Calculate the belt length and the angles of wrap. Ans. 13.95 m, 3.34 rad or 191.4°
B. Compute the belt tensions based on a coefficient of friction of 0.33. Ans. 1.76 KN, 1.96 KN
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A bolt with a square threaded screw has mean diameter of 25 mm and a pitch of 3 mm. It carries an axial thrust of 10 kN on the bolt head of 25 mm mean radius. If u = 0.12, find the force required at the end of a spanner 450 mm long, in tightening up the bolt. 3. [Ans. 110.8 N] A turn buckle with right and left hand threads is used to counle twvo railway coaches The threadsarrow_forwardRequired 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_forwardthe shaft and Bols bolts. [Ans. 300 mm; 56 mm] 11. Design a bushed-pin type flexible coupling for connecting a motor shaft to a pump shaft for the following service conditions: Power to be transmitted = 40 kW; speed of the motor shaft= 1000 r.p.m. ; diameter of the motor shaft = 50 mm ; diameter of the pump shaft = 45 mm. The bearing pressure in the rubber bush and allowable stress in the pins are to be limited to 0.45 N/mm2 and 25 MPa respectively. [Ans. d, = 20 mm; n 6; d, = 40 mm; 1 152 mm] :1.1arrow_forward
- Problem 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_forwardQ1) 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_forwardA flanged bolt coupling consists of six 2-in. steel bolts evenly spaced around a bolt circle 12 in. in diameter, and four 4-in. aluminum bolts on a concentric bolt circle 8 in. in diameter. What torque can be applied (kip-in) without exceeding 9000 psi in the steel or 6000 psi in the aluminum? Assume Gst = 12 x 106 psi and Gal = 4 x 106 psi. Numeric Responsearrow_forward
- Q(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_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_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_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_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_forward3) 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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Differences between Temporary Joining and Permanent Joining.; Author: Academic Gain Tutorials;https://www.youtube.com/watch?v=PTr8QZhgXyg;License: Standard Youtube License