Large Deformation Analysis of Lattice Truss Structures Including Hysteretic Material Behavior

by Nayla Khattar,
George E. Blandford, (M.ASCE),
Shien T. Wang, (M.ASCE),



Document Type: Proceeding Paper

Part of: Spatial, Lattice and Tension Structures

Abstract:

A methodology is presented to analyze lattice truss structures including both material and geometric nonlinearities. Modeled member material behavior modes include: buckling, yielding, inelastic post-buckling behavior, unloading, and reloading. Geometric nonlinearity is based on updating the linearized Lagrangian space truss displacement equations. Interaction of the nonlinear loading behavior results in structure force redistributions which can lead member unloading and reloading response.



Subject Headings: Material properties | Structural analysis | Structural behavior | Finite element method | Failure analysis | Nonlinear analysis | Deformation (mechanics) | Material failures

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