Machine Elements in Mechanical Design (6th Edition) (What's New in Trades & Technology)
6th Edition
ISBN: 9780134441184
Author: Robert L. Mott, Edward M. Vavrek, Jyhwen Wang
Publisher: PEARSON
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Chapter 6, Problem 13P
To determine
Outside diameter of hollow circular column for given load,material,design factor and end fixity.
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Students have asked these similar questions
Given the configuration in Figure 1, calculate the load that can be supported under the following
design conditions:
(a) The pin at point R, enlarged in Figure 2, is 10.0 mm diameter. What load can be supported
by the pin if the ultimate shear strength of the pin is 195 MPa and a safety factor of 2.0 based
on ultimate strength is required?
(b) Using the load condition from (a), size cable ST if it has a design stress of 207.5 MPa.
6.00 m
75.0°
Load
2.00 m
R
Figure 1
Force
Figure 2
The figure below shows a boat propeller mounted on a drive shaft with a 7 mm diameter (d) cylindrical drive pin inserted through the hub
and the shaft. The drive shaft diameter, D, inside the hub is 69 mm. The pin is made from AISI 1020 cold rolled steel, which has a yield stress
of 427 MPa and an ultimate stress of 621 MPa. If the drive pin is subjected to an overload (e.g. strikes a log), calculate the torque (Nm)
required to shear the pin.
Note: Assume that the max shear stress of the pin material is approximately equal 82% of the ultimate tensile stress.
Do not include units in your answer.
Pin
F
Hub
Drive
pin
Shaft
Drive
shaft
F
Shear
planes
Hub
Answer:
10)
A screw clamp similar to the one shown in the figure has a handle with diameter in made
of cold-drawn AISI 1006 steel. The overall length is 3 in. The screw is in-14 UNC and is
5 in long. overall. Distance A is 2 in The clamp will accommodate parts up to 4 in tagh.
(a) What screw torque will cause the handle to bend permanenly?
See sample problem 10.1, sections 10.4, 10.7
Given;
hordle dia :
16
in
L: 3in.
Disa: Zin
10/29
Find: Scrcw torque ,!
Assumphon : The screw torque is
far cold decun
AISI 1006 steel.
a
L: 3-
8
2.406 in
%3D
4
32
T: 2.406F
H:(L-3) -굵)F. 2.188F
F- (2406
F: 2.188F
Sy: 41 Kpsi.
32 (2-188) F
TI (O.1875)3
Sy = 32M
F-12:13 1bf
T. 2.406 CI2:13) =
29.216f. in
The lorque of the screw
which will couse the
scoch to bend pemorently is 29.21of. in.
is 29.210f.10.
Chapter 6 Solutions
Machine Elements in Mechanical Design (6th Edition) (What's New in Trades & Technology)
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