The Science and Engineering of Materials (MindTap Course List)
7th Edition
ISBN: 9781305076761
Author: Donald R. Askeland, Wendelin J. Wright
Publisher: Cengage Learning
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Chapter 6, Problem 6.67P
To determine
The FCC metals are recommended for use at low temperatures and sudden loading.
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A prototype automobile is designed to travel at 65 km/hr. A model of this design is tested in a wind tunnel with identical standard sea-
level air properties at a 1:5 scale. The measured model drag is 529 N, enforcing dynamic similarity. Determine (a) the drag force on the
prototype and (b) the power required to overcome this drag. See the equation
Vm
m
=
D
V Dm
(a) Dp = i
(b) Pp = i
N
hp
A new blimp will move at 6 m/s in 20°C air, and we want to predict the drag force. Using a 1: 14-scale model in water at 20°C and
measuring a 2500-N drag force on the model, determine (a) the required water velocity, (b) the drag on the prototype blimp and, (c) the
power that will be required to propel it through the air.
(a) Vm = i
(b) Dp = i
(c) Pp = i
m/s
N
W
Drag measurements were taken for a sphere, with a diameter of 5 cm, moving at 3.7 m/s in water at 20°C. The resulting drag on the
sphere was 10 N. For a balloon with 1-m diameter rising in air with standard temperature and pressure, determine (a) the velocity if
Reynolds number similarity is enforced and (b) the drag force if the drag coefficient in the equation below is the dependent pi term.
li ε pVI
D
1
= CD = Q
μ
(a) Vp = i
(b) Dp = i
m/s
N
Chapter 6 Solutions
The Science and Engineering of Materials (MindTap Course List)
Ch. 6 - Explain the role of mechanical properties in...Ch. 6 - Prob. 6.2PCh. 6 - Explain the importance of understanding mechanical...Ch. 6 - Prob. 6.4PCh. 6 - Prob. 6.5PCh. 6 - Prob. 6.6PCh. 6 - Prob. 6.7PCh. 6 - Prob. 6.8PCh. 6 - Prob. 6.9PCh. 6 - Prob. 6.10P
Ch. 6 - Prob. 6.11PCh. 6 - Draw a schematic diagram showing the development...Ch. 6 - Draw qualitative engineering stress-engineering...Ch. 6 - Prob. 6.14PCh. 6 - A cylindrical specimen of a titanium alloy having...Ch. 6 - A material with a diameter of 8 mm is pulled with...Ch. 6 - Prob. 6.17PCh. 6 - An 850-lb force is applied to a 0.15-in.diameter...Ch. 6 - A force of 100,000 N is applied to an iron bar...Ch. 6 - Prob. 6.20PCh. 6 - Prob. 6.21PCh. 6 - Prob. 6.22PCh. 6 - Prob. 6.23PCh. 6 - Prob. 6.24PCh. 6 - Prob. 6.25PCh. 6 - Prob. 6.26PCh. 6 - Prob. 6.27PCh. 6 - Prob. 6.28PCh. 6 - Prob. 6.29PCh. 6 - Prob. 6.30PCh. 6 - Prob. 6.31PCh. 6 - A force of 4000 lbs is applied to a cylindrical...Ch. 6 - A cylindrical bar of steel, 10 mm in diameter, is...Ch. 6 - Prob. 6.34PCh. 6 - A standard 0.505-in.-diameter tensile bar was...Ch. 6 - A specimen of an AISI-SAE type 416 stainless steel...Ch. 6 - The following data were collected from a test...Ch. 6 - The following data were collected from a standard...Ch. 6 - Prob. 6.39PCh. 6 - The following data were collected from a...Ch. 6 - The following data were collected from a...Ch. 6 - Consider the tensile stress strain diagrams in...Ch. 6 - Prob. 6.43PCh. 6 - Why is it that we often conduct a bend test on...Ch. 6 - Prob. 6.45PCh. 6 - A bar of Al2O3 that is 0.25 in. thick, 0.5 in....Ch. 6 - A three-point bend test is performed on a block of...Ch. 6 - Prob. 6.48PCh. 6 - Prob. 6.49PCh. 6 - Prob. 6.50PCh. 6 - Dislocations have a major effect on the plastic...Ch. 6 - Prob. 6.52PCh. 6 - Prob. 6.53PCh. 6 - Prob. 6.54PCh. 6 - Prob. 6.55PCh. 6 - Explain the terms “macrohardness” and...Ch. 6 - Prob. 6.57PCh. 6 - Prob. 6.58PCh. 6 - Prob. 6.59PCh. 6 - Prob. 6.60PCh. 6 - Prob. 6.61PCh. 6 - Prob. 6.62PCh. 6 - Prob. 6.63PCh. 6 - The following data were obtained from a series of...Ch. 6 - Plot the transition temperature versus manganese...Ch. 6 - Prob. 6.66PCh. 6 - Prob. 6.67PCh. 6 - Prob. 6.68PCh. 6 - Prob. 6.69PCh. 6 - Prob. 6.70PCh. 6 - Prob. 6.71PCh. 6 - Prob. 6.72PCh. 6 - Prob. 6.73PCh. 6 - Prob. 6.74PCh. 6 - Prob. 6.75PCh. 6 - Prob. 6.76PCh. 6 - Prob. 6.77PCh. 6 - Prob. 6.78PCh. 6 - What two equations are used to describe Bingham...Ch. 6 - Prob. 6.80PCh. 6 - Prob. 6.81PCh. 6 - Prob. 6.82PCh. 6 - Prob. 6.1KP
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