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Finite element analysis of tubular track system
Published in Alphose Zingoni, Insights and Innovations in Structural Engineering, Mechanics and Computation, 2016
K.J.S. Verlinde, J.A.v.B. Strasheim
Previous FEAs have been performed by Transnet using three-dimensional (3D) models by means of the Strand7 Finite Element Method (FEM) software package, and by the University of Stellenbosch using two-dimensional (2D) models with the PROKON FEM software package, but yielded conflicting results. This means that one of the analysis methods used for the analysis and design of TT railway sections is either an underestimation or overestimation of section displacements, forces and stresses, or both methods could even be incorrect. The results and models of the previous analyses were not explicitly investigated in this project, but served as a motivation forit. The main emphasis is on developing and verifying analysis methods and modeling techniques which can be used to simulate the TT railway system accurately.
Post-buckling of network arch bridges subjected to vertical loads
Published in Structure and Infrastructure Engineering, 2021
Paolo Zampieri, Cyrille Denis Tetougueni, Emanuele Maiorana, Carlo Pellegrino
The results obtained in this study have been possible thank to an intensive finite element method (FEM) analysis using the commercial software Strand7. More specifically, 1 D beam elements have been used for all structural elements except the deck, where 2 D shell elements with eight nodes quad8 and six degrees of freedom are used in the analysis. The deck is modeled as square panels between two transversal beams to consider the connection between the deck and transversal beams. Hanger’s arrangement in this study follows an equal radial distribution on the arch rib as presented in Figure 6(a).