engleski

An algorithm for numerical creep buckling analysis of beam-type structures

In this paper a numerical stability analysis of beam-type structures in a creep regime is presented. A numerical algorithm using one dimensional spatial beam finite element is developed. Beam members are supposed to be straight and prismatic. Spatial displacements and rotations are allowed to be large but strains are assumed to be small. The corresponding equilibrium equations are formulated in the framework of Eulerian description, using the virtual work principle. Euler-Bernoully beam theory for flexure is assumed as well as Saint-Venant theory for torsion. Implementation of developed numerical algorithm is demonstrated through few test problems.

beam-type structures; creep; buckling; finite element analysis

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