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MindTap Engineering for Askeland/Wright's The Science and Engineering of Materials, 7th Edition, [Instant Access], 2 terms (12 months)
7th Edition
ISBN: 9781305111219
Author: Donald R. Askeland; Wendelin J. Wright
Publisher: Cengage Learning US
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Chapter 1, Problem 1.13P
To determine
The properties of material for the total knee replacement of a deteriorated knee joint with an artificial prothesis.
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To select a material for an application, it is necessary to evaluate whether its chemical and mechanical structure can be applied to a specific function and whether its properties will meet the required demands of the applied product. One way to identify these characteristics is to understand the types of deformations that materials can undergo.
Describe the differences between elastic deformation and plastic deformation in polymers, and how these concepts influence the mechanical properties of polymeric materials. Then, provide examples of practical situations where each type of deformation can be observed.
CASE STUDY
A material is to be selected for the main landing-gear support for a carrier-based navy airplane. Both weight and size of the support are important considerations, as well as minimal deflection under normal landing conditions. The support must also be able to handle impact loading, both under normal landing conditions and under extreme emergency controlled-crash-landing conditions. Under crash-landing conditions permanent deformations are acceptable, but separation into pieces is not acceptable. What candidate materials would you suggest for this application?
A cylindrical rod 100 mm long and having a diameter of 10.0 mm is to be deformed using a tensile
load of 27,500 N. It must not experience either plastic deformation or a diameter reduction of more
than 7.5 x 10-³ mm. Of the materials listed as follows, which are possible candidates? Justify your
choice(s).
Material
Aluminum alloy
Brass alloy
Steel alloy
Titanium alloy
Modulus of Elasticity (GPa) Yield Strength (MPa) Poisson's Ratio
70
101
207
107
200
300
400
650
0.33
0.34
0.30
0.34
Chapter 1 Solutions
MindTap Engineering for Askeland/Wright's The Science and Engineering of Materials, 7th Edition, [Instant Access], 2 terms (12 months)
Ch. 1 - Define materials science and engineering (MSE).Ch. 1 - What is the importance of the engineering...Ch. 1 - Define the following terms: Composition;...Ch. 1 - Explain the difference between the terms materials...Ch. 1 - The myriad materials in the world primarily fall...Ch. 1 - What are some of the materials and mechanical...Ch. 1 - What is a ceramic, and what are some of the...Ch. 1 - comparisons between thermoplastics and...Ch. 1 - Give three examples of composites that can be...Ch. 1 - For each of the followign classes of materials,...
Ch. 1 - Describe the enabling materials property of each...Ch. 1 - Describe the enabling materials property of each...Ch. 1 - Prob. 1.13PCh. 1 - Prob. 1.14PCh. 1 - Prob. 1.15PCh. 1 - Temperature indicators are sometimes produced from...Ch. 1 - Prob. 1.17PCh. 1 - Prob. 1.18PCh. 1 - Prob. 1.19PCh. 1 - Prob. 1.20PCh. 1 - Steel is often coated with a thin layer of zinc if...Ch. 1 - Prob. 1.22PCh. 1 - Prob. 1.23PCh. 1 - Prob. 1.24PCh. 1 - You are an engineer working for a manufacturer of...Ch. 1 - We would like to produce a transparent canopy for...Ch. 1 - Prob. 1.27PCh. 1 - Prob. 1.28PCh. 1 - Prob. 1.29PCh. 1 - Prob. 1.30PCh. 1 - Prob. 1.31PCh. 1 - You would like to be able to identify different...Ch. 1 - You would like to be able to physically separate...Ch. 1 - Some pistons for automobile engines might be...Ch. 1 - • Convert 7750kg/m3tolb/ft3 using the Unit...Ch. 1 - • Using the basic search option in Knovel, find as...Ch. 1 - Prob. 1.3KP
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- The design of an aircraft fuselage skin requires sufficient strength and stiffness in both the longitudinal and hoop direction. Based on this information alone, which of the following material options would be the best option? A) Aluminum 2024-T3 B) Unidirectional glass/epoxy laminate Which of the statements below on the Euler buckling load is correct? A) If the axial load increases, the Euler buckling load will go up. B) If the axial load decreases, the Euler buckling load will go up. C) If the lateral load increases, the Euler buckling load will go up. D) If the lateral load decreases, the Euler buckling load will go up. Is the following statement true or false: A structure does not need to break (ie: fracture) in order to fail. Select whether the following statement is true or false: Structural safety is solely the responsibility of the aircraft manufacturer and the airworthiness authorities. Select whether the following statement is true or false: Damage tolerance is…arrow_forwardHelp!arrow_forwardA cylindrical rod having a diameter of 10.0 mm is to be deformed using a tensile load of 20,500 N. It must not experience either plastic deformation or a diameter reduction of more than 4 x 10-³mm. Referring to the materials listed below, which are/is possible candidates? Justify your choice(s). Material Magnesium alloy Brass alloy Steel alloy Modulus of Elasticity (GPa) Yield Strength (MPa) Poisson's Ration 200 0.35 0.34 0.30 45 101 207 300 400arrow_forward
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