Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Analysis of prestressed cable structure through an energy minimization technique
Submission Author:
Kaique Moreira Matos Magalhães , BA , Brazil
Co-Authors:
Kaique Moreira Matos Magalhães, Alexandre de Macêdo Wahrhaftig, Reyolando Brasil
Presenter: Kaique Moreira Matos Magalhães
doi://10.26678/ABCM.COBEM2021.COB2021-0313
Abstract
In this article, the principle of minimum total potential energy was applied to determine the static configuration of an elastic prestressed cable structure, widely used in light roof structures, often called tensostructures. As large displacements are to be expected, geometric nonlinear behavior is observed. Equilibrium can only be computed at the final, initially unknown, displaced position. Instead of a traditional nonlinear Finite Element Analysis via Newton’s Method, it is proposed to apply a numerical optimization technique to minimize the total potential energy. At the end, the deformed configuration of the structure was obtained and equilibrium checked.
Keywords
Total Potential Energy Minimization, Prestressed structure, Optimization, geometric nonlinearity
