Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 14, Problem 8ETSQ
To determine
Theclass of material that is least expansive per unit volume over an elastic modulus of 100 GPa.
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We have 2 different materials which are "A" and "B".
Material Name
Modulus of Elasticity (GPa)
Length
(mm)
Diameter
(mm)
K (Bulk Modulus)
(GPa)
A
70
100
10
65
B
50
100
10
67
Please answer these questions according to data;
1) Which one can show more deformation if the same tensile load is applied?
2) Which one increases more in diameter if the same compression load is applied?
3) Which one is more ductile?
Consider an 6061-T6 aluminun alloy having an elastic modulus of 75 GPa and yield strength of 260 MPa. What is the modulus of resilience of the given material ?
A cylindrical rod with a length of 380 mm and a diameter of 10 mm is to be subjected to a tensile load. The rod must not experience
plastic deformation or an increase in length of more than 0.9 mm when a load of 24.5 kN is applied. Which of the four materials
listed in table are possible candidates? Justify your answer.
Material Elastic Modulus, GPa Yield Strength, MPa Tensile Strength, MPa
110
ETT
70
207
101
Copper
Aluminum
alloy
Steel
Brass alloy
248
255
448
345
289
420
551
420
* Plastic deformation is defined as a process in which the object due to applied force changes its size or shape in a way that is not
reversible
Chapter 14 Solutions
Materials Science And Engineering Properties
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