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Fundamentals of Finite Element

311 The plane truss shown in Figure P3.1 is composed of members having a square 15 mm x 15 mm cross section and modulus of elasticity E 69 GPa. a. Assemble the global stiffness matrix. b. Compute the nodal displacements in the global coordinate system for the loads shown. Compute the axial stress in each element. c. 3 kN 3 5 kN- 1.5 m 1.5 nm Figure P3.11

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