391_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

391_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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Unformatted text preview: 9/25/08 12:43 PM Page 385 SECTION 4.5 Shear-Force and Bending-Moment Diagrams FREE-BODY DIAGRAM—BEAM (b) 5q0L/3 q0L/2 q0L2/6 q0L2/6 q0L2 q0L/2 q0L/2 q0L/2 5q0L/3 q0L/2 q0L 5q0L/3 5q0L/3 Use statics to find reactions at B and D for Beam (b) 1 q L (right) 20 1 5 q L + q0L 20 3 1 q L (right) 20 ; ; D N 0 B A C 0 q0L/2 (compression) 5q0L/3 q0L/2 V 0 0 q0L2 q0L2/6 M0 –5q0L/3 (compression) 0 ; ; 5 q L (downward) 30 Dy MD 7 q L (upward) 60 q0L/2 By Dx ; –q0L/2 Bx –q0L2/4 04Ch04.qxd 0 385 ...
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