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Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question

Part 2,4

The cantilever beam shown in Figure A is subjected to load magnitudes of P₂ = 3.3 kips and Py = 8.1 kips. The flanged cross section shown in Figure B has dimensions of b, = 7.6 in., 1, = 0.64 in., d = 10.0 in., and t = 0.30 in. Using L = 80 in., determine: (a) the bending stress at point A. (b) the bending stress at point B. (c) the angle for the orientation of the neutral axis relative to the +z axis. Note that positive angles rotate clockwise from the + z axis. FIGURE A P₂ Z B by 1w. D FIGURE B |B| T
Transcribed Image Text:The cantilever beam shown in Figure A is subjected to load magnitudes of P₂ = 3.3 kips and Py = 8.1 kips. The flanged cross section shown in Figure B has dimensions of b, = 7.6 in., 1, = 0.64 in., d = 10.0 in., and t = 0.30 in. Using L = 80 in., determine: (a) the bending stress at point A. (b) the bending stress at point B. (c) the angle for the orientation of the neutral axis relative to the +z axis. Note that positive angles rotate clockwise from the + z axis. FIGURE A P₂ Z B by 1w. D FIGURE B |B| T
Part 2 * Incorrect. Cut the beam at the section containing points A and B and consider an FBD on the segment of the beam from this section to the end containing loads Py P, and P₂ P₂. In this case, My My is positive and M₂ M₂ is negative. Determine the moment M, produced by the loads about the y axis at the section containing A and B. Also determine the moment Mz produced about the z axis at this section. Use the correct signs for moments. My = M₂ = Hint e Textbook and Media i 648 Part 3 i 264 Save for Later Part 4 ox,A = i Determine the bending stress at A. Use the sign convention for normal stresses. eTextbook and Media kip-in Save for Later kip-in ksi wal Submit Answer Submit Answer
Transcribed Image Text:Part 2 * Incorrect. Cut the beam at the section containing points A and B and consider an FBD on the segment of the beam from this section to the end containing loads Py P, and P₂ P₂. In this case, My My is positive and M₂ M₂ is negative. Determine the moment M, produced by the loads about the y axis at the section containing A and B. Also determine the moment Mz produced about the z axis at this section. Use the correct signs for moments. My = M₂ = Hint e Textbook and Media i 648 Part 3 i 264 Save for Later Part 4 ox,A = i Determine the bending stress at A. Use the sign convention for normal stresses. eTextbook and Media kip-in Save for Later kip-in ksi wal Submit Answer Submit Answer
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