Mechanics of Materials, SI Edition
9th Edition
ISBN: 9781337093354
Author: Barry J. Goodno, James M. Gere
Publisher: Cengage Learning
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Chapter 8, Problem 8.5.30P
A mountain bike rider going uphill applies a force P = 65 N to each end of the handlebars AB CD, made of aluminum alloy 7075-T6, by pulling on the handlebar extenders (DF on right handlebar segment). Consider the right half of the handlebar assembly only (assume the bars are fixed at the fork at A), Segments AB and CD are prismatic with lengths Lvand L3 and with outer diameters and thicknesses J01, /01 and d03, /03, respectively, as shown. Segment BC of length L2, however, is tapered, and outer diameter and thickness vary linearly between dimensions at B and C Consider shear, torsion, and bending effects only for segment AD; assume DFis rigid.
Find the maximum tensile, compressive, and shear stresses adjacent to support A. Show where each maximum stress value occurs
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on-the-job conditions.
9 ±0.2-
0.5
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Application questions 1-7 refer to the drawing above.
1. What does the flatness tolerance labeled "G" apply to?
Surface F
A.
B.
Surfaces E and F
C. Surfaces D, E, H, and I
D.
The derived median plane of 12 +0.2
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7.
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12 ±0.2-
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ASME Y14.5-2009
elements, each with a length of 1 m. Determine the temperature on
node 1, 2, 3, 4.
3. Solve the strong form analytically (you may choose Maple, MATLAB
or Mathematica to help you solve this ODE). Compare the FE
approximate temperature distribution through the block against the
analytical solution.
1
(1)
200 °C
2
(2)
3 m
3
(3)
Compute the horizontal and vertical components of the
reaction at the pin A.
B
A
30°
0.75 m
1 m
60 N
0.5 m
90 N-m
Chapter 8 Solutions
Mechanics of Materials, SI Edition
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