Buckling of symmetrical circular sandwich plates with variable mechanical properties of the core in the radial direction
| Autor: | Karolina Wiśniewska-Mleczko, Ewa Magnucka-Blandzi, Mikołaj J. Smyczyński |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Deformation (mechanics) 02 engineering and technology Radius Mechanics 021001 nanoscience & nanotechnology Potential energy Finite element method Physics::Fluid Dynamics Shear (sheet metal) Core (optical fiber) Nonlinear system 020303 mechanical engineering & transports 0203 mechanical engineering Buckling Ceramics and Composites 0210 nano-technology Civil and Structural Engineering |
| Zdroj: | Composite Structures. 204:88-94 |
| ISSN: | 0263-8223 |
| DOI: | 10.1016/j.compstruct.2018.07.020 |
| Popis: | The study is devoted to thin-walled clamped symmetrical three-layer circular plate. The sandwich plate consists of two facings, and a metal foam core. The mechanical properties of the core plate vary along its radius, remaining constant in the facings. The main goal of the study is to elaborate a mathematical model of the compressed circular plate in its middle plane, analytical description and solution of the global buckling problem. The nonlinear hypothesis of deformation of the normal to the middle plane of the plate is formulated. The equations of equilibrium are derived based on the principle of stationary total potential energy. The proposed mathematical model of the displacements considers the shear effect. The analytical model is verified numerically with the use of Finite Element Analysis . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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