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Assessing the structural behavior of shear-critical prestressed concrete beams using finite element analysis and digital image correlation KU Leuven
The reported study firstly presents the results of an extensive experimental program consisting of 9 full-scale I-shaped prestressed concrete beams. Each specimen is subjected to a four-point bending test with monotonically increasing load until failure occurs. The investigated parameters are the amount of prestressing, the amount of longitudinal and shear reinforcement and the shear spanto- effective depth ratio respectively. Continuous ...
Prediction of creep behaviour of geogrid reinforced fill structure using numerical analysis : a finite element method Ghent University
Various types of geosynthetics are utilized in conjunction with concrete panels, gabions encased in steel wire mesh, or as a wrap-up solution to stabilize steep slopes. Geogrids have become a prevalent choice for stabilization and reinforcement in the environmental and civil sectors. However, due to their characteristics, they are susceptible to experiencing increased displacements in the long term as a result of creep deformations due to ageing ...
A comparison of structural hot-spot stress methods using different finite element techniques Ghent University
In this paper, different methods have been used for the evaluation of structural hot-spot stress (SHSS) near rib-to-deck (RD) welded joint in orthotropic steel deck (OSD). The SHSS at this critical joint is calculated by means of finite element analyses (FEA) based software Siemens NX.12. Different meshing techniques and element sizes have been used for the determination of SHSS. Also, the effect of nodal averaging feature is studied on each ...
Analysis of functionally graded plates using an edge-based smoothed finite element method Ghent University
The effect of concrete floor roughness on bovine claws using finite element analysis Ghent University
The interaction between bovine claws and a concrete floor with defined roughness and friction coefficients is described using a finite element model. The model was built by using x-ray tomography scanner images of an unloaded fore and hind bovine claw. These images were used to reproduce the geometry of the claw horn capsule, which was used to create a finite element model. Young's moduli of 382, 261, and 13.6 MPa were attributed to the dorsal ...
Mesoscale finite element analysis of cracked composite laminates under out-of-plane loads using 3D periodic boundary conditions Ghent University
The behavior of composite materials under out-of-plane loads is strongly affected by the presence of transverse ply cracks. The cracks perturb the distribution of stresses leading to large out-of-plane shear stiffness reductions. It is crucial to include these effects in the damage material models to improve their accuracy. Therefore, the stress transfer and stiffness reduction in cracked laminates have been studied with a mesoscale finite ...
Sound transmission analysis using the hybrid finite element - wave based approach for coupled vibroacoustic problems KU Leuven
In this paper, a hybrid structural finite element (FE) - acoustic wave based (WB) approach is formulated to avoid using extra acoustic FE in the case of a simple structural geometry but with complicated structural material properties. Following the formulation, the approach is implemented and validated. First, linear hexahedral solid elements with a selective reduced integration are implemented in an in-house code and are checked to be able to ...
A progressive damage model of textile composites on meso-scale using finite element method: Fatigue damage analysis KU Leuven Ghent University
© 2015 Elsevier Ltd. All rights reserved. A finite element (FE) approach for tension-tension fatigue damage in textile reinforced composites on meso-scale level (fabric unit cell) is proposed. S-N curves of a unidirectional composite (UD) out of the fatigue tests in fibre, transverse-fibre, in-plane-shear and out-of-plane-shear directions are used as the input for the impregnated yarns. The algorithm of multi-axial fatigue is applied to ...
Updating Finite Element Model of a Wind Turbine Blade Section Using Experimental Modal Analysis Results KU Leuven
© 2014 Marcin Luczak et al. This paper presents selected results and aspects of the multidisciplinary and interdisciplinary research oriented for the experimental and numerical study of the structural dynamics of a bend-twist coupled full scale section of a wind turbine blade structure. The main goal of the conducted research is to validate finite element model of the modified wind turbine blade section mounted in the flexible support structure ...