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