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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rebulla, Sergio Minera
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2019Efficient 3D Stress Capture of Variable-Stiffness and Sandwich Beam Structurescitations
- 2019Comparing the effect of geometry and stiffness on the effective load paths in non-symmetric laminates
- 2019Geometrically nonlinear finite element model for predicting failure in composite structurescitations
- 2019On the accuracy of localised 3D stress fields in tow-steered laminated composite structurescitations
- 2018Three-dimensional stress analysis for laminated composite and sandwich structurescitations
- 2018Three-dimensional stress analysis for beam-like structures using Serendipity Lagrange shape functionscitations
- 2017On the accuracy of the displacement-based Unified Formulation for modelling laminated composite beam structures
- 2017Linearized buckling analysis of thin-walled structures using detailed three-dimensional stress fieldscitations
- 2017Continuum mechanics of beam-like structures using onedimensional finite elements based on Serendipity Lagrange cross-sectional discretisationscitations
- 20173D stress analysis for complex cross-section beams using unified formulation based on Serendipity Lagrange polynomial expansion
- 2017A Computationally Efficient Model for Three-dimensional Stress Analysis of Stiffened Curved Panels
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article
Efficient 3D Stress Capture of Variable-Stiffness and Sandwich Beam Structures
Abstract
Accurate modeling of composite structures is important for their safe application under different loading conditions. To provide accurate predictions of three-dimensional (3D) stress fields in an efficient computational framework, in this study, a modeling approach that builds upon the recently developed hierarchical Serendipity Lagrange finite elements (FEs) is employed. The approach provides layerwise (LW) and equivalent single-layer (ESL) models for analyzing constant- and variable-stiffness laminated beam structures. To enhance the capability of the ESL model, two zig-zag (ZZ) functions, namely,Murakami’s ZZ function (MZZF) and the refined ZZ theory function (RZT), are implemented. For constant-stiffness laminated and sandwich beams, the RZT ZZ function predicts the structural response more accurately than the MZZF. However, for variable-stiffness laminated structures, the applicability of RZT remains unknown and its accuracy is therefore tested within the present formulation. Results obtained are validated against 3D closed-form and 3D FE solutions available from the literature. For similar levels of accuracy, significant gains in computational efficiency are achieved over 3D FE and LW models by using the ESL approach with RZT ZZ functions.