Buckling Analysis of Symmetrically Laminated Rectangular Thin Plates under Biaxial Compression

Altunsaray, Erkin; Bayer, İsmail

doi:10.18400/tekderg.606620

Cited by 2 publications

(4 citation statements)

References 36 publications

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“…Similar to the results found in the previous studies of the authors [30] in which they analyzed rectangular plates, although the critical buckling loads of some plates in superelliptical plates are the same in this study, these results change when the aspect ratio changes. For instance, LT8 and LT19 plates have equal critical buckling loads in a/b=1 case, but mode shapes are different (Figure B1).…”

Section: Effect Of Lamination Types Boundary Conditions and Aspect Ratiossupporting

confidence: 91%

“…It was observed that from the results of highest value for the lowest critical buckling loads (N cr ) of super-elliptical plates (n=10), angle-ply plates are more advantageous than crossply and quasi-isotropic plates for lowest aspect ratio is (a/b=1, 1.2 and 1.4). Besides, quasiisotropic plates are more advantageous than others for highest aspect ratios (a/b=1.6, 1.8 and 2) similar the rectangular plate in previous work [30] for the simply supported boundary condition. However, quasi-isotropic plates are more advantageous than others for all aspect ratios for clamped boundary conditions.…”

Section: Effect Of Lamination Types Boundary Conditions and Aspect Ratiosmentioning

confidence: 51%

“…The vibration analysis of symmetrically laminated quasi-isotropic super-elliptical thin plates has been presented by the author [29]. The buckling analysis of symmetrically laminated rectangular thin plates under biaxial compression was studied by Altunsaray and Bayer [30] recently. This paper is a development of previous work [30] studied by the authors.…”

Section: Introductionmentioning

confidence: 99%

“…The buckling analysis of symmetrically laminated rectangular thin plates under biaxial compression was studied by Altunsaray and Bayer [30] recently. This paper is a development of previous work [30] studied by the authors. In their previous studies, the authors examined the biaxial buckling analyzes of simply supported laminated quasi-isotropic, cross-ply and angle-ply rectangular plates according to the Classical Laminated Plate Theory (CLPT).…”

Section: Introductionmentioning

confidence: 99%

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Buckling of Laminated Elliptical and Super-Elliptical Thin Plates

Altunsaray

Bayer

2022

Teknik Dergi

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In this computational study the buckling analysis of symmetrically laminated elliptical and super-elliptical thin plates was carried out. The plates were considered as clamped or simply supported at the boundary. The minimum buckling load was determined using the Rayleigh-Ritz method and the Galerkin Method based on the Classical Laminated Plate Theory (CLPT). The influence of the solution methods, shape functions, boundary conditions, super-elliptical power, lamination type, aspect ratio, and thickness on the critical buckling load were investigated using a parametric study. The verification of the isotropic case was performed comparing some results in the open literature, and reliable agreement was obtained. Convergence studies of the composite case with increasing terms (up to 10 terms) were achieved and sufficient accuracy was provided. During the preliminary design stage of composite structures, many design parameters such as panel sizes, panel thickness, stacking sequences, boundary conditions and loading conditions are taken into consideration. It is possible to evaluate these parameters quickly by using appropriate shape function with the Rayleigh-Ritz method.

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Section: Effect Of Lamination Types Boundary Conditions and Aspect Ratiossupporting

confidence: 91%

Section: Effect Of Lamination Types Boundary Conditions and Aspect Ratiosmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Buckling of Laminated Elliptical and Super-Elliptical Thin Plates

Altunsaray

Bayer

2022

Teknik Dergi

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Fundamental Frequencies of Elliptical Plates using Static Deflections

Altekin¹

2022

Teknik Dergi

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Fundamental frequencies of solid and annular elliptical plates were approximated using the static deflections by means of finite element method (FEM) without computing the eigenvalues. The problem was formulated within the framework of the first order shear deformation theory (FSDT). The effects of (i) the inner and outer boundary conditions, (ii) the size of the perforation, (iii) the aspect ratio, and (iv) the thickness of the plate on the performance of the method were examined via a large variety of numerical simulations. Convergence study was performed through h-refinement. Accuracy of the results was validated through comparison studies. The results reveal that the application of the Morley's formula which does not require eigenvalue analysis approximates the fundamental frequency with finer mesh compared to the eigenvalue analysis. The method can be considered as a practical technique to approximate the fundamental frequency. However, the boundary conditions have dominant role on the accuracy of the solution particularly when the plate is perforated.

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Buckling Analysis of Symmetrically Laminated Rectangular Thin Plates under Biaxial Compression

Cited by 2 publications

References 36 publications

Buckling of Laminated Elliptical and Super-Elliptical Thin Plates

Buckling of Laminated Elliptical and Super-Elliptical Thin Plates

Fundamental Frequencies of Elliptical Plates using Static Deflections

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