Lecture 8: 2-Noded Truss Element - Updated Lagrangian Formulation

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Topics: The two-noded truss element - updated Lagrangian formulation Derivation of updated Lagrangian truss element displacement and strain-displacement matrices from continuum mechanics equations Assumption of large displacements and rotations but small strains Physical explanation of the matrices obtained directly by application of the principle of virtual work Effect of geometric (nonlinear strain) stiffness matrix Example analysis: Prestressed cable Instructor: Klaus-Jürgen Bathe