EBK SHIGLEY'S MECHANICAL ENGINEERING DE
10th Edition
ISBN: 8220100256431
Author: BUDYNAS
Publisher: YUZU
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Chapter 6, Problem 10P
Estimate the endurance strength of a 1.5-in-diameter rod of AISI 1040 steel having a machined finish and heat-treated to a tensile strength of 110 kpsi, loaded in rotating bending.
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Estimate the endurance strength (Se) of a 1.49-in-diameter (d) rod of AISI 1040 steel having a machined finish and heat-treated to a
tensile strength ( Su) of 108 kpsi, loaded in rotating bending. Obtain the parameters for Marin surface modification factor from Table
6-2.
The endurance strength is
kpsi
Estimate the endurance strength of a 1.5-in-diameter rod of AISI 1040 steel having a machined finish and heat-treated
to a tensile strength of 110 kpsi.
A forged steel bar, 50 mm in diameter, is subjected to a reversed bending stress of 250 MPa. The bar is made of 40 C8 with ultimate strength of 600 MPa. Calculate the endurance limit and life of the bar. Consider 90% reliability.
Chapter 6 Solutions
EBK SHIGLEY'S MECHANICAL ENGINEERING DE
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....
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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
- I need help pleasearrow_forwardI need handwritten and correct only otherwise skiparrow_forwardA rectangular bar is cut from an AISI 1020 cold-drawn steel flat. The bar is 2.500 in wide by 4/8 in thick and has a 0.500-in-dia. hole drilled through the center as depicted in Table A-15-1. The bar is concentrically loaded in push-pull fatigue by axial forces Fa, uniformly distributed across the width. Using a design factor of na = 2, estimate the largest force Fa that can be applied ignoring column action. What is the largest force that can be applied to the part? (Round the final answer to three decimal places.) The largest force that can be applied is kips.arrow_forward
- 2. The sketch shows a round bar with a groove loaded in bending. The material is annealed AISI 1040 steel, with an as-machined groove, and is to be designed with a reliability of 99%. (Note: This is a large shaft.) (a) What is the endurance limit of this specimen? Sz= k, cs kr kn Se (b) Estimate the safety factor using the Goodman line if the moment varies from-2000 Nm to +3630 Nm. ATSI 2 S - 3Sompaarrow_forwardA 1000mm cast iron pulley is fastened to a 112mm shaft by means a 28mm square key 160mm long. The key and shaft are SAE 1030 steel annealed with allowable shearing of key at 200MPa and compressive of 660MPa. a. What force in lbs acting at the pulley rim will shear the key? b. What force in the lbs acting at the pulley rim will crush the key?arrow_forwardEstimate the fatigue strength of a rotating-beam made of AISI 1020 HR steel corresponding to a life of 12.5 kilocycles of stress reversal. Also, estimate the life of the specimen corresponding to stress amplitude of 36 ksi.arrow_forward
- An SAE 1040 Cold Drawn Steel part has a rectangular shape with dimensions of 2 in base x 6 in height. The part is under fluctuating bending stress (flexural stress). Calculate the estimated actual endurance limit Sn' .arrow_forwardrotating shaft of 16 mm diameter is made of plain carbon steel. It is subjected to axial load of 5000 N, a steady torque of 50 N-m and maximum bending moment of 75 Nm. Calculate the factor of safety available based on 1. Maximum normal stress theory; and 2. Maximum shear stress theory. Assume yield strength as 400 MPa for plain carbon steelarrow_forwardPlease help, let me know if there's anything I need to upload. thank youarrow_forward
- 2. Compute for the estimated actual endurance limit for a machined rectangular steel bar (ASTMA148-58 SAE 0105) 3.5 in high by 0.375 in thick, subjected to repeated and reversed bendingstress. A reliability of 99% is desired. Please give the FBD also every calculation, thank youarrow_forward1. A rotating l-in diameter solid round bar has a groove 0.1-in deep with a 0.1-radius machined into it. The bar is made of AISI 1020 CD steel and is subjected to a purely reversing torque of 1800 lbf-in. For the S-N curve of the material, let f= 0.9. 1) Estimate the number of cycles to failure. 2) If the bar is also placed in an environment with a temperature of 750 °F, estimate the number of cycles to failure. Note: for pure shear stress state, find ta and Tm to replace oa and om. Apply the load factor k. = 0.59. To get safety factor against first-cycle yielding, use Sgy=0.577 Sy (based on DE theory). For fatigue life or fatigue failure criteria, Replace Sut with Sgu. Ssu = 0.67Sµtarrow_forward2 Estimate the fatigue strength of a rotating-beam made of AISI 1035 CR steel corresponding to a life of 10° cycles of stress reversal. Also, estimate the life of the specimen corresponding to stress amplitude of 60 ksi.arrow_forward
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