Bundle: Welding: Principles and Applications, 8th + MindTap Welding, 4 terms (24 months) Printed Access Card
8th Edition
ISBN: 9781337219426
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 16R
What may happen if the GMA welding electrode is allowed to strike the base metal outside of the molten weld pool?
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A triangular distributed load of max intensity w acts on beam
AB. The beam is supported by a pin at A and member CD,
which is connected by pins at C and D respectively.
Determine the largest load intensity, Wmax, that can be
applied if the pin at D can support a maximum force of
18000 N. Also determine the reactions at A and C
and express each answer in Cartesian components. Assume
the masses of both beam and member ✓ are
negligible.
Dwas
шал
=
A
BY NC SA
2016 Eric Davishahl
C
D
-a-
Ур
-b-
X
B
W
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
6.6 m
b
11.88 m
C
4.29 m
The maximum load intensity is
=
wmax
N/m.
The reaction at A is A =
The reaction at C is
=
i+
Ĵ N.
ĴN.
12
i+
The beam is supported by a pin at B and a roller at C and is
subjected to the loading shown with w =110 lb/ft, and F
205 lb.
a.) If M
=
2,590 ft-lb, determine the support reactions at B
and C. Report your answers in both Cartesian components.
b.) Determine the largest magnitude of the applied couple M
for which the beam is still properly supported in equilibrium
with the pin and roller as shown.
2013 Michael Swanbom
CC
BY NC SA
M
ру
W
B⚫
C
F
ka
b
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
3.2 ft
b
6.4 ft
C
3 ft
a.) The reaction at B is B =
The reaction at C is C =
ĵ lb.
i+
Ĵ lb.
b.) The largest couple that can be applied is M
ft-lb.
==
i+
The beam ABC has a mass of 79.0 kg and is supported by
the rope BDC that runs through the frictionless pulley at D
. The winch at C has a mass of 36.5 kg. The tension in the
rope acts on the beam at points B and C and counteracts
the moments due to the beam's weight (acting vertically at
the midpoint of its length) and the weight of the winch
(acting vertically at point C) such that the resultant moment
about point A is equal to zero. Assume that rope segment
CD is vertical and note that rope segment BD is NOT
necessarily perpendicular to the beam.
a.) Compute the tension in the rope.
b.) Model the two forces the rope exerts on the beam as a
single equivalent force and couple moment acting at point B.
Enter your answer in Cartesian components.
c.) Model the two forces the rope exerts on the beam as a
single equivalent force (no couple) and determine the
distance from A to the point along the beam where the
equivalent force acts (measured parallel to the beam from A
). Enter your answer…
Chapter 10 Solutions
Bundle: Welding: Principles and Applications, 8th + MindTap Welding, 4 terms (24 months) Printed Access Card
Ch. 10 - Why is usage of the term GWW preferable to MIG for...Ch. 10 - Using Table 10-1, answer the following: a. What...Ch. 10 - What factors must be considered when selecting...Ch. 10 - In short-circuiting transfer, what type of current...Ch. 10 - Describe the globular transfer process.Ch. 10 - In what form is metal transferred across the arc...Ch. 10 - What three conditions are required for the spray...Ch. 10 - Using Table 10-3, answer the following: a. What...Ch. 10 - Describe the current produced by the pulsed-arc...Ch. 10 - In the pulsed-arc metal transfer current cycle,...
Ch. 10 - List five advantages of the modulated current and...Ch. 10 - What is the difference between the wire melting...Ch. 10 - Using Figure 10-13, what is the approximate...Ch. 10 - Using Table 10-6, what would the amperage be for...Ch. 10 - The shielding gas selected can affect what...Ch. 10 - What may happen if the GMA welding electrode is...Ch. 10 - What effect does shortening the electrode...Ch. 10 - Describe the weld produced by a forehand welding...Ch. 10 - Describe the weld produced by a backhand welding...Ch. 10 - What components make up a GMA welding system?Ch. 10 - Why must GMA welders have a 100 duty cycle?Ch. 10 - What can happen if rollers of the wrong shape are...Ch. 10 - Where is the drive motor located in a pull-type...Ch. 10 - How is the wire-feed speed changed with a linear...Ch. 10 - What type of liner should be used for aluminum...Ch. 10 - What parts of a typical GMA welding gun can...Ch. 10 - Describe the spot welding process using a GMA...
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