Hygrothermal effects on the buckling of soft‐core sandwich plates with composite layered face sheets
| Autor: | S. Kamarian, Jung-Il Song, Mahdi Bodaghi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Work (thermodynamics)
Materials science Polymers and Plastics Physics::Instrumentation and Detectors Composite number 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Quadrature (mathematics) Core (optical fiber) Buckling Materials Chemistry Ceramics and Composites Piecewise Boundary value problem Composite material 0210 nano-technology Parametric statistics |
| Zdroj: | Polymer Composites. 41:4144-4169 |
| ISSN: | 1548-0569 0272-8397 |
| DOI: | 10.1002/pc.25700 |
| Popis: | The present work attempts to investigate the influence of hygrothermal environments on the buckling of soft-core sandwich plates with laminated composite face sheets. The stability equations are derived based on piecewise low-order shear deformation theory (PLSDT) and then solved using different methods, depending on the boundary conditions. For fully simply supported sandwich plates, an analytical method is developed which results in some closed-form solutions. For sandwich plates with two parallel simply supported edges and two clamped edges, a semi-analytical solution is established using one-dimensional generalized differential quadrature (GDQ) technique. Finally, for fully clamped sandwich plates, two-dimensional GDQ approach is applied to the governing equations. To validate the results of proposed methods, a comparative study with various examples is carried out verifying that the methods in the present work can accurately predict the buckling load of sandwich plates in hot and wet environments. Then, a comprehensive parametric study is performed to show the effects of temperature and moisture content on the buckling of sandwich plates for different parameters such as length to thickness ratio, core thickness and boundary conditions. It is concluded that both temperature and moisture content have significant influences on the buckling behavior of sandwich plates. |
| Databáze: | OpenAIRE |
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