5.2 The magnitude of the bending moment acting on the circular cross section of a beam is M- 30000 lb-n. Calculate the bending stresses at the following points on the cross section: (a) A; (b) B; and (c) D.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Answer 5.2 only. Show the complete solution.
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Unless directed otherwise, neglect the weight of the beam in the following problems. For
standard structural shapes, use the properties tabulated in Appendix B.
2 in
5.1 A beam constructed from 2-in. by 8-in. boards has the cross section shown in
the figure. If the maximum bending moment acting in the beam is M = 16000 lb-ft.
determine the maximum bending stress in (a) board 4; and (b) board B.
8 in
5.2 The magnitude of the bending moment acting on the circular cross section of a
beam is M - 30000 lb-ft. Calculate the bending stresses at the following points on
the cross section: (a) A; (b) B; and (c) D.
2 in
2 in
33.3 mm
D.
Flange
W 360 x 262
FIG. PS.1
NA-
387 mm
21.1 mm
Web
- 398 mm -
FIG. PS.2
FIG. PS.3
5.3 The bending moment acting on the W 360 x 262 section is 460 kN-m. Find the
maximum bending stress in (a) the flanges, and (b) the web. See Appendix B-2 for
properties of the section.
Transcribed Image Text:Problems Unless directed otherwise, neglect the weight of the beam in the following problems. For standard structural shapes, use the properties tabulated in Appendix B. 2 in 5.1 A beam constructed from 2-in. by 8-in. boards has the cross section shown in the figure. If the maximum bending moment acting in the beam is M = 16000 lb-ft. determine the maximum bending stress in (a) board 4; and (b) board B. 8 in 5.2 The magnitude of the bending moment acting on the circular cross section of a beam is M - 30000 lb-ft. Calculate the bending stresses at the following points on the cross section: (a) A; (b) B; and (c) D. 2 in 2 in 33.3 mm D. Flange W 360 x 262 FIG. PS.1 NA- 387 mm 21.1 mm Web - 398 mm - FIG. PS.2 FIG. PS.3 5.3 The bending moment acting on the W 360 x 262 section is 460 kN-m. Find the maximum bending stress in (a) the flanges, and (b) the web. See Appendix B-2 for properties of the section.
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