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Simulation and structural optimization of 3d Timoshenko beam networks based on fully analytic network solutions

Simulation and structural optimization of 3d Timoshenko beam networks based on fully analytic network solutions

By Ing. Fabricio Romero, Estudiante de la Maestría en Optimización Matemática EPN

Fecha seminario: 2026-05-21

This article is concerned with the efficient and accurate simulation and optimization of linear Timoshenko beam networks subjected to external loads. A solution scheme based on analytic ansatz-functions known to provide analytic solutions for the deformation and rotation of a single beam with given boundary data is extended to the full network. It is demonstrated that the analytic approach is equivalent to a finite element (FE) method where only one element with a suitably chosen shape function per beam is required. The solution of the FE-type system provides analytic solutions at the nodes, from which the solutions along the beams can be reconstructed. Consequently analytic solutions for the network can be computed by a numerical scheme without applying a spacial discretization. This is particularly interesting for topology and material optimization problems formulated on the network.

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