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MAE 261A E NERGY AND V ARIATIONAL P RINCIPLES IN S TRUCTURAL M ECHANICS F ALL 2004 Homework Assignment No. 5 Due Wednesday, November 24, 2004. Problem 1 Use the method of virtual displacements to compute the force in bar EG in the truss in Figure 1. Hint: consider coupled motions of joints B and G that involve no length change of any bar except EG . Figure 1: Truss from Problem 1. Problem 2 Compute the tip displacement of a cantilever beam under a triangular load as shown in Figure 2 using a. the method of virtual forces b. the method of virtual displacements
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Unformatted text preview: Figure 2: Beam from Problem 2. Problem 3 Use the method of virtual forces to compute the vertical displacement of joint C of the truss in Figure 3 due to the external loads. 1 MAE 261A ENERGY AND VARIATIONAL PRINCIPLES IN STRUCTURAL MECHANICS FALL 2004 Figure 3: Truss from Problem 3. Problem 4 Use the method of virtual forces to compute the force and moment reactions on the right end of the beam in Figure 4. Figure 4: Beam from Problem 4. 2...
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  • Fall '04
  • Klug
  • Cantilever, Truss bridge, Virtual Forces

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