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Steel and Composite Structures Volume 45, Number 5, December10 2022 , pages 767-774 DOI: https://doi.org/10.12989/scs.2022.45.5.767 |
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A geometrically nonlinear stability analysis of sandwich annular plates with cellular core |
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Ridha A. Ahmed, Kareem Mohsen Raheef, Nadhim M. Faleh and Raad M. Fenjan
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| Abstract | ||
| A geometrically nonlinear stability analysis of sandwich annular plates with cellular core and particle-reinforced composite layers has been performed in the present research. The particles are powders of graphene oxide (GOP) which act as nanoscale filler of epoxy matrix. To this regard, Halpin-Tsai micromechanical scheme has been used to define the material properties of the layers. A square shaped core has been considered for which the material properties have been defined based on the relative density concept. Large deflection theory of thin shells has been selected to develop the complete formulation of sandwich plate. The geometrically nonlinear stability analysis of sandwich annular plates has been carried out by indicating that the buckling load is dependent on particle amount, thickness of layer and core relative density. | ||
| Key Words | ||
| composite; design; nonlinear stability; numerical; sandwich plate; steel | ||
| Address | ||
| Ridha A. Ahmed, Nadhim M. Faleh and Raad M. Fenjan: Al-Mustansiriah University, Engineering Collage P.O. Box 46049, Bab-Muadum, Baghdad 10001, Iraq Kareem Mohsen Raheef:Ashur University College, Baghdad, Iraq | ||