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Equivalent single layer and layerwise models for flutter and buckling analysis of supersonic variable stiffness laminated composite plates
https://orcid.org/0000-0001-6968-260X
https://orcid.org/0000-0001-9287-3519
https://orcid.org/0000-0003-3994-2516
https://orcid.org/0000-0001-9074-2558
Abstract This work provides an assessment of Equivalent Single Layer (ESL) and Layerwise finite element models, aimed for panel flutter and buckling analysis of supersonic variable stiffness composites, exploring variable-order shear deformation theories and Lagrange z-expansions. Numerical applications focus on simply supported panels with curvilinear fibre composite layers, including a cross-ply configuration for comparison purposes, and various side-to-thickness ratios. The accurate prediction of transverse shear and bending–twisting coupling is highlighted, as rather necessary for proper tailoring and analysis of supersonic curvilinear composites, especially when including in-plane loads. This is attainable through high-order ESL descriptions, in thin panels, even without thickness stretching.
Highlights Refined models for aeroelastic stability analysis of variable stiffness composites. Variable-order ELS and LW descriptions assessed for flutter and buckling response. Proper modelling of curvilinear fibre composites in pre-stressed supersonic panels.
Equivalent single layer and layerwise models for flutter and buckling analysis of supersonic variable stiffness laminated composite plates
https://orcid.org/0000-0001-6968-260X
https://orcid.org/0000-0001-9287-3519
https://orcid.org/0000-0003-3994-2516
https://orcid.org/0000-0001-9074-2558
Abstract This work provides an assessment of Equivalent Single Layer (ESL) and Layerwise finite element models, aimed for panel flutter and buckling analysis of supersonic variable stiffness composites, exploring variable-order shear deformation theories and Lagrange z-expansions. Numerical applications focus on simply supported panels with curvilinear fibre composite layers, including a cross-ply configuration for comparison purposes, and various side-to-thickness ratios. The accurate prediction of transverse shear and bending–twisting coupling is highlighted, as rather necessary for proper tailoring and analysis of supersonic curvilinear composites, especially when including in-plane loads. This is attainable through high-order ESL descriptions, in thin panels, even without thickness stretching.
Highlights Refined models for aeroelastic stability analysis of variable stiffness composites. Variable-order ELS and LW descriptions assessed for flutter and buckling response. Proper modelling of curvilinear fibre composites in pre-stressed supersonic panels.
Equivalent single layer and layerwise models for flutter and buckling analysis of supersonic variable stiffness laminated composite plates
https://orcid.org/0000-0001-6968-260X
https://orcid.org/0000-0001-9287-3519
https://orcid.org/0000-0003-3994-2516
https://orcid.org/0000-0001-9074-2558
Abstract This work provides an assessment of Equivalent Single Layer (ESL) and Layerwise finite element models, aimed for panel flutter and buckling analysis of supersonic variable stiffness composites, exploring variable-order shear deformation theories and Lagrange z-expansions. Numerical applications focus on simply supported panels with curvilinear fibre composite layers, including a cross-ply configuration for comparison purposes, and various side-to-thickness ratios. The accurate prediction of transverse shear and bending–twisting coupling is highlighted, as rather necessary for proper tailoring and analysis of supersonic curvilinear composites, especially when including in-plane loads. This is attainable through high-order ESL descriptions, in thin panels, even without thickness stretching.
Highlights Refined models for aeroelastic stability analysis of variable stiffness composites. Variable-order ELS and LW descriptions assessed for flutter and buckling response. Proper modelling of curvilinear fibre composites in pre-stressed supersonic panels.
Equivalent single layer and layerwise models for flutter and buckling analysis of supersonic variable stiffness laminated composite plates
Moreira, J.A. (author) / Moleiro, F. (author) / Araújo, A.L. (author) / Pagani, A. (author)
Thin-Walled Structures ; 191
2023-07-08
Article (Journal)
Electronic Resource
English
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