Tech Manual for Erjavec's Automotive Technology: A Systems Approach
6th Edition
ISBN: 9781133933731
Author: ERJAVEC, Jack, Thompson, Rob
Publisher: Delmar Cengage Learning
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Chapter 52, Problem 4RQ
True or False? Disc brakes are not as likely to fade during heavy braking as are drum brakes.
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For the notched specimen with h = 0.13 m and r =11 mm, calculate the nominal stress for F=5 kN.
F
h
F
25 mm
Please submit your answer in the units of MPa.
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 49%.
60
Su = 66 ksi
Stress σ (ksi)
Sy = 39 ksi
400B
Se = 36 ksi
Hot-rolled 1020 steel
20
F
0
0
10 20 30
40 50 60
70 80 90 100 110 120 130 140 150 160
Strain € (%)
0
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of Su is applicable to this location?
0.6
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 40%.
60
Su = 66 ksi
Stress σ (ksi)
40
20
Sy=
=
39 ksi
Se
= 36 ksi
Hot-rolled 1020 steel
F
| G |
H
0
10 20 30 40
50
60
0
70 80 90 100 110 120 130 140 150 160
Strain € (%)
☐
T
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of Sy is applicable to this location?
0.6
Chapter 52 Solutions
Tech Manual for Erjavec's Automotive Technology: A Systems Approach
Ch. 52 - Name the three major assemblies that make up a...Ch. 52 - Name the three types of calipers used on disc...Ch. 52 - What type of brake uses the inside of each rear...Ch. 52 - True or False? Disc brakes are not as likely to...Ch. 52 - What are the two basic types of brake rotors used...Ch. 52 - True or False? All calipers have at least one...Ch. 52 - What is the difference between floating and...Ch. 52 - What is rotor parallelism and how is it checked?Ch. 52 - Why is brake fluid removed from the master...Ch. 52 - Describe the procedure for using compressed air to...
Ch. 52 - List three conditions that dictate that a rotor...Ch. 52 - Give two main advantages of an on-vehicle lathe...Ch. 52 - What should be done to remove rust, corrosion, pit...Ch. 52 - Which term refers to variations in thickness of...Ch. 52 - Which of the following is not likely to cause a...Ch. 52 - Technician A says that a hard brake pedal on a...Ch. 52 - When replacing brake pads on a vehicle: Technician...Ch. 52 - When examining disc brakes: Technician A visually...Ch. 52 - Technician A cleans brake components in denatured...Ch. 52 - While discussing how to remove the piston from a...Ch. 52 - The functions of a splash shield are being...Ch. 52 - Technician A says that the piston seal retracts...Ch. 52 - Technician A says that fixed calipers use a piston...Ch. 52 - While installing new brake pads: Technician A...Ch. 52 - Loaded calipers are being discussed: Technician A...
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