Numerical study and experiments on the elasto-visco-plastic bifurcation buckling of thick anisotropic plates
| Autor: | Christophe Garnier, Nicolas Jacquet, Thomas Elguedj, Nicolas Tardif |
|---|---|
| Přispěvatelé: | Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), CEA-DES-IRESNE-DTN |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Bifurcation buckling
Work (thermodynamics) Digital image correlation Materials science business.industry Mechanical Engineering Deformation theory 02 engineering and technology Building and Construction Structural engineering [SPI.MECA.SOLID]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Solid mechanics [physics.class-ph] 021001 nanoscience & nanotechnology 01 natural sciences Displacement (vector) Finite element method 010101 applied mathematics Buckling 0101 mathematics 0210 nano-technology Anisotropy business ComputingMilieux_MISCELLANEOUS Civil and Structural Engineering |
| Zdroj: | Thin-Walled Structures Thin-Walled Structures, Elsevier, 2021, 166, pp.108070. ⟨10.1016/j.tws.2021.108070⟩ Thin-Walled Structures, 2021, 166, pp.108070. ⟨10.1016/j.tws.2021.108070⟩ |
| ISSN: | 0263-8231 |
| Popis: | The present work investigates the elasto-visco-plastic buckling of thick plate structures. Methods to estimate the buckling of thin elasto-visco-plastic shells and plates are proposed in literature. To the knowledge of the authors, only few works present experimental results, and none treat the experimental elasto-visco-plastic buckling of thick plate. Thick rectangular plates are chosen as a structure of interest to study elasto-visco-plastic buckling. A modelling/experimental approach is followed to solve such problem. Buckling experiments at room temperature on thick elasto-visco-plastic plates subjected to compressive load are performed. 3D digital image correlation (3D-DIC) is used to measure displacement fields on plate surface during buckling experiments. The experiments are also modelled through a finite element model. Bodner’s approach is coupled to Hencky’s deformation theory to predict buckling of elasto-visco-plastic plates. Bifurcation analysis are performed to estimate buckling critical stresses and strains, and buckling modes. Geometrical and loading imperfections are also discussed. A good correlation is observed between numerical results and experiments. The limitation of Bodner’s approach is also discussed. |
| Databáze: | OpenAIRE |
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