sion force T is attached to a horiz ber at B and C to support a sign st passes over a small frictionless pu is made of a copper alloy, and the tionship for the wire is

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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1.6-6 A continuous cable (diameter 6 mm) with ten-
sion force T is attached to a horizontal frame mem-
ber at B and C to support a sign structure. The cable
passes over a small frictionless pulley at D. The wire
is made of a copper alloy, and the stress-strain rela-
tionship for the wire is
124,000Є
σ(ε)
1 + 300€
0 ≤ & ≤ 0.03 (σ in MPa)
(a) Find the axial normal strain in the cable and its
elongation due to the load W = 6.8 kN.
(b) If the forces are removed, what is the
set of the cable?
permanent
Hint: Start with constructing the stress-strain dia-
gram and determine the modulus of elasticity, E, and
the 0.2% offset yield stress.
y^
D
2 m
A
1.5 m
B
1.5 m
E
F
0.75 m
PROBLEM 1.6-6
1 m→1 m→→
0.25 m
W = 6.8 kN
Transcribed Image Text:1.6-6 A continuous cable (diameter 6 mm) with ten- sion force T is attached to a horizontal frame mem- ber at B and C to support a sign structure. The cable passes over a small frictionless pulley at D. The wire is made of a copper alloy, and the stress-strain rela- tionship for the wire is 124,000Є σ(ε) 1 + 300€ 0 ≤ & ≤ 0.03 (σ in MPa) (a) Find the axial normal strain in the cable and its elongation due to the load W = 6.8 kN. (b) If the forces are removed, what is the set of the cable? permanent Hint: Start with constructing the stress-strain dia- gram and determine the modulus of elasticity, E, and the 0.2% offset yield stress. y^ D 2 m A 1.5 m B 1.5 m E F 0.75 m PROBLEM 1.6-6 1 m→1 m→→ 0.25 m W = 6.8 kN
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