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EMA 405

EMA 405. Truss Elements. Truss Elements. Used for “bridge” analysis, cranes, etc. Support only tension or compression (no bending, hinged at ends) 2 degrees of freedom ( u x and u y ) per node for 2-D bar. Stiffness for Truss Elements. F 1. F 2. A, E. u 1. u 2. L.

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EMA 405

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  1. EMA 405 Truss Elements

  2. Truss Elements • Used for “bridge” analysis, cranes, etc. • Support only tension or compression (no bending, hinged at ends) • 2 degrees of freedom (ux and uy) per node for 2-D bar

  3. Stiffness for Truss Elements F1 F2 A, E u1 u2 L

  4. A Global Element Matrix (Example) P A, E A, E u1 u2 u3 L L

  5. Solution

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