Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 6, Problem 14P
A rectangular bar is cut from an AISI 1020 cold-drawn steel flat. The bar is 2.5 in wide by
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A rectangular bar is cut from an AISI 1018 cold-drawn steel flat. The bar is 1 in wide by 3/8 in thick and has a ¼ in-diameter hole drilled through the center. The bar is subjected to a tension load fluctuating between 800 and 3000 lb. estimate the factors of safety guarding against failure
by yielding and by fatigue action. (Assume infinite life is desire)
A 37.5 mm round bar has been machined from AISI 1050 cold-drawn round bar
Su =689 MPa. This part is to withstand a fluctuating tensile load varying from
0 to 72.5 kN. Because of the design of the ends and the fillet radius, a fatigue
stress-concentration factor of 1.85 exists. Find the factor of safety F.S.
A solid round bar with diameter of 2 in has a groove cut to a diameter of 1.8 in, with a radius of 0.1 in. The bar is not
rotating. The bar is loaded with a repeated bending load that causes the bending moment at the groove to fluctuate
between 0 and 25 000 lbf in. The bar is hot-rolled AISI 1095, but the groove has been machined. Determine the factor
of safety for fatigue based on infinite life and the factor of safety for yielding.
Plars &
.
Chapter 6 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 6 - A 10-mm steel drill rod was heat-treated and...Ch. 6 - Prob. 2PCh. 6 - A steel rotating-beam test specimen has an...Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - Repeat Prob. 6-5 with the specimen having an...Ch. 6 - A steel rotating-beam test specimen has an...Ch. 6 - Derive Eq. (6-17). Rearrange the equation to solve...Ch. 6 - For the interval 103 N 106 cycles, develop an...Ch. 6 - Estimate the endurance strength of a...
Ch. 6 - Two steels are being considered for manufacture of...Ch. 6 - A 1-in-diamctcr solid round bar has a groove...Ch. 6 - A solid square rod is cantilevered at one end. The...Ch. 6 - A rectangular bar is cut from an AISI 1020...Ch. 6 - A solid round bar with diameter of 2 in has a...Ch. 6 - The rotating shaft shown in the figure is machined...Ch. 6 - The shaft shown in the figure is machined from...Ch. 6 - Solve Prob. 6-17 except with forces F1 = 1200 lbf...Ch. 6 - Bearing reactions R1 and R2 are exerted on the...Ch. 6 - A bar of steel has the minimum properties Se = 40...Ch. 6 - Repeat Prob. 6-20 but with a steady torsional...Ch. 6 - Repeat Prob. 6-20 but with a steady torsional...Ch. 6 - Repeat Prob. 6-20 but with an alternating...Ch. 6 - A bar of steel has the minimum properties Se = 40...Ch. 6 - The cold-drawn AISI KUO steel bar shown in the...Ch. 6 - Repeat Prob. 6-25 for a load that fluctuates from...Ch. 6 - An M14 2 hex-head bolt with a nut is used to...Ch. 6 - The figure shows a formed round-wire cantilever...Ch. 6 - The figure is a drawing of a 4- by 20-mm latching...Ch. 6 - The figure shows the free-body diagram of a...Ch. 6 - Solve Prob. 6-30 except let w1 = 2.5 in. w2 = l.5...Ch. 6 - For the part in Prob. 630, recommend a fillet...Ch. 6 - Prob. 33PCh. 6 - Prob. 34PCh. 6 - A part is loaded with a combination of bending,...Ch. 6 - Repeat the requirements of Prob. 6-35 with the...Ch. 6 - 6-37 to 6-46For the problem specified in the build...Ch. 6 - 6-37 to 6-46For the problem specified in the build...Ch. 6 - 637 to 646 For the problem specified in the table,...Ch. 6 - For the problem specified in the table, build upon...Ch. 6 - 6-37 to 6-46 For the problem specified in the...Ch. 6 - 6-37 to 6-46 For the problem specified in the...Ch. 6 - 6-37 to 6-46 For the problem specified in the...Ch. 6 - Problem Number Original Problem, Page Number 637...Ch. 6 - 6-37 to 6-46 For the problem specified in the...Ch. 6 - 6-37 to 6-46 For the problem specified in the...Ch. 6 - 6-47 to 6-50 For the problem specified in the...Ch. 6 - 6-47 to 6-50 For the problem specified in the...Ch. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - 6-51 to 6-53 For the problem specified in the...Ch. 6 - 6-51 to 6-53 For the problem specified in the...Ch. 6 - 6-51 to 6-53 For the problem specified in the...Ch. 6 - Solve Prob. 6-17 except include a steady torque of...Ch. 6 - Solve Prob. 618 except include a steady torque of...Ch. 6 - In the figure shown, shaft A, made of AISI 1020...Ch. 6 - A schematic of a clutch-testing machine is shown....Ch. 6 - For the clutch of Prob. 657, the external load P...Ch. 6 - A flat leaf spring has fluctuating stress of max =...Ch. 6 - A rotating-beam specimen with an endurance limit...Ch. 6 - A machine part will be cycled at 350 MPa for 5...Ch. 6 - The material properties of a machine part are Sut...Ch. 6 - Repeat Prob. 662 using the Goodman criterion....
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 solid round bar with diameter of 2 in has a groove cut to a diameter of 1.8 in, with a radius of 0.1 in. The bar is not rotating. The bar is loaded with a repeated bending load that causes the bending moment at the groove to fluctuate between 0 and 25 000 lbf in. The bar is hot-rolled AISI 1095, but the groove has been machined. Determine the factor of safety for fatigue based on infinite life and the factor of safety for yielding. .arrow_forwardA solid round bar with diameter of 50.800 mm has a groove cut to a diameter of 45.720 mm, with a radius of 2.540 mm. The bar is not rotating. The bar is loaded with a repeated bending load that causes the bending moment at the groove to fluctuate between 0 and 2825.000 N m. The bar is hot-rolled AISI 1095, but the groove has been machined. Determine the factor of safety for fatigue based on infinite life using the Goodman criterion, and the factor of safety for yielding.arrow_forward4. Determine the design stress for bolts in a cylinder cover where the load is fluctuating due to gas pressure. The maximum load on the bolt is 50 kN and the minimum is 30 kN. The load is unpredict- able and factor of safety is 3. The surface of the bolt is hot rolled and the suface finish factor is 0.9. During a simple tension test and rotating beam test on ductile materials (40 C 8 steel annealed), the following results were obtained : Diameter of specimen =12.5 mm; Yield strength= 240 MPa; Ultimate strength= 450 MPa; Endurance limit = 180 MPa. [Ans. 65.4 MPa]arrow_forward
- Round cross-sectional bar, has a diameter of d= 35 mm cut from an AISI 1030 Hot Rolled steel. The bar is loaded with a completely reversed axial load. Calculate the Corrected Endurance limit that would ensure infinite life. (answer must be in MPa), accepted answer range (+/- 1 MPa)arrow_forwardThe round cross-sectional bar is cut from an AISI 1020 colddrawn steel with a diameter of 25 mm. The bar is loaded at its end with a completely reversed load Fmin = 5 kN, Fmax = -3 kN. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? What length must be used if a more conservative criteria is used?arrow_forwardIn the diagram below shows a circula bar , made of AISI 1040 OQT 1300 steel (SU = 600 MPa), is loaded with an axial tensile loading P. Find the modified endurance strength (SE) and the modified fatigue strength (SF) for the bar if D = 36 mm, d = 30 mm, and r = 2.4 mm. Use the number of cycles tofracture to be 5 × 105. Assume that the surface finish factor, kf, is 0.85, the size factor, kS, is 0.85, and the notch sensitivity factor, qn, is 0.75. Use the following equations if needed,arrow_forward
- 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.arrow_forwardA bronze bearing supports the steel shaft shown in the figure. The shaft has a Brinell hardness (HB) of 150 and a diameter of 30 mm. The bearing has a length of 30 mm. Estimate the depth of adhesive wear to expect from the shaft if it rotates at 200 rpm for 4 years (three 8-hour shift per day, 260-day per year) if the transverse load is 2000 N. Poor lubrication is expected between the shaft and the bearing.arrow_forwardA full forming P= 57 kN axial force acts on the part shaped by the machining method made of xCy steel material. The thickness of the part is t= 20 mm and the steel tensile strength is = 670 MPa . Calculate the individual fatigue life of the A and B sections of the machine part for 90% reliability. Draw logarithmic S_N diagrams.arrow_forward
- Problem 2 A 1.5-in-diameter bar has been machined from an AISI 1050 cold-drawn bar having a yield strength of 84 kpsi and ultimate strength of 100 kpsi. This part is to withstand a fluctuating tensile load varying from 0 to 16 kip. Knowing a fatigue stress-concentration factor K, is 1.85 for 106 or larger life. The Marin factors are: K₂= 0.8; K=1; K=K=K₂=K=1. Estimate the factor of safety guarding against fatigue and static failures using the Gerber and Langer failure criteria.arrow_forwardThe figure below shows a boat propeller mounted on a drive shaft with a 7 mm diameter (d) cylindrical drive pin inserted through the hub and the shaft. The drive shaft diameter, D, inside the hub is 69 mm. The pin is made from AISI 1020 cold rolled steel, which has a yield stress of 427 MPa and an ultimate stress of 621 MPa. If the drive pin is subjected to an overload (e.g. strikes a log), calculate the torque (Nm) required to shear the pin. Note: Assume that the max shear stress of the pin material is approximately equal 82% of the ultimate tensile stress. Do not include units in your answer. Pin F Hub Drive pin Shaft Drive shaft F Shear planes Hub Answer:arrow_forwardA part is loaded with a combination of bending, axial, and torsion such that the following stresses are created at a particular location: Bending - Completely reversed, with a maximum stress of 60 MPa Axial - Constant stress of 20 MPa Torsion - Repeated load, varying from 0 MPa to 50 MPa Assume the varying stresses are in phase with each other. The part contains a notch such that Kibending = 1.4, Kaxial = 1.1, and K. = 2.0. The material properties are Sy = 300 MPa and S, = 400 MPa. The completely adjusted endurance limit is found to be Se= 200 MPa. Find the factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding. f,torsionarrow_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
Stresses Due to Fluctuating Loads Introduction - Design Against Fluctuating Loads - Machine Design 1; Author: Ekeeda;https://www.youtube.com/watch?v=3FBmQXfP_eE;License: Standard Youtube License