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
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Textbook Question
Chapter 5, Problem 29P
5-26 to 5-30 A cast aluminum 195-T6 exhibits Sut = 36 kpsi, Suc = 35 kpsi, and εf = 0.045. For the given state of plane stress, (a) using the Coulomb-Mohr theory, determine the factor of safely. (b) plot the failure locus and the load line, and estimate the factor of safety by graphical measurement.
Problem Number | σx (kpsi) | σy (kpsi) | τxy (kpSi) |
5–26 | 15 | −10 | 0 |
5–27 | −15 | 10 | 0 |
5–28 | 12 | 0 | −8 |
5–29 | −10 | −15 | 10 |
5–30 | 15 | 8 | −8 |
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6-25 The cold-drawn AISI 1040 steel bar shown in the figure
reversed axial load fluctuating between 28 kN in compression to 28 kN in tension.
Estimate the fatigue factor of safety based on achieving infinite life and the yielding
factor of safety. If infinite life is not predicted, estimate the number of cycles to failure.
6-mm D.
25 mm
Problem 6-25
10 mm
Do # 26 not # 25
Required information
This problem illustrates that the factor of safety for a machine element depends on the particular point selected for
analysis. Here you are to compute factors of safety, based upon the distortion-energy theory, for stress elements at A and
B of the member shown in the figure. This bar is made of AISI 1006 cold-drawn steel and is loaded by the forces F= 0.55
kN, P= 4 kN, and T=25 N-m. Given: Sy= 280 MPa.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
B
15-mm D.
-100 mm
What is the value of the axial stress at point A?
The value of the axial stress at point A is
MPa.
Chapter 5 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 5 - A ductile hot-rolled steel bar has a minimum yield...Ch. 5 - A ductile hot-rolled steel bar has a minimum yield...Ch. 5 - A ductile hot-rolled steel bar has a minimum yield...Ch. 5 - A ductile hot-rolled steel bar has a minimum yield...Ch. 5 - A ductile hot-rolled steel bar has a minimum yield...Ch. 5 - Prob. 6PCh. 5 - 5-7 to 5-11 An AISI 1018 steel has a yield...Ch. 5 - 5-7 to 5-11 An AISI 1018 steel has a yield...Ch. 5 - 5-7 to 5-11 An AISI 1018 steel has a yield...Ch. 5 - 5-7 to 5-11 An AISI 1018 steel has a yield...
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