375_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

375_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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SECTION 4.5 Shear-Force and Bending-Moment Diagrams 369 Problem 4.5-21 The two beams below are loaded the same and have the same support conditions. However, the location of internal axial, shear and moment releases is different for each beam (see figures). Which beam has the larger maximum moment? First, find support reactions, then plot axial force (N), shear (V) and moment (M) diagrams for both beams. Label all critical N, V & M values and also the distance (a) L 2 L 2 L 4 L 4 B PL Moment release PL A C D A y A x M Az C y P 4 3 Shear release
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Unformatted text preview: Axial force release (b) L 2 L 2 L 4 L 4 B PL Moment release PL A C A y A x M Az C y P 4 3 Shear release Axial force release D y D x D D y D x N V M 2P/ 5 3P/5(tension) PL 2P/ 5 PL/10 Solution 4.5-21 Support reactions for both beams: M Az 0, A x 0, A y These two cases have the same maximum moment ( PL ) (Both beams have the same N , V and M diagrams) ; D x 3 5 P ( rightward) C y 2 5 P ( upward), D y 2 5 P ( upward) 04Ch04.qxd 9/24/08 4:24 AM Page 369...
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This note was uploaded on 12/22/2011 for the course MEEG 310 taught by Professor Staff during the Fall '11 term at University of Delaware.

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