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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

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