Buckling behaviors of laminated composite stepped flat columns

Akbulut, Hamit; Gündoğdu, Ömer; Şengül, Memnune

doi:10.1016/j.finel.2010.07.004

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…Columns and beams of fiber reinforced polymer composites can be used in a variety of structures, such as buildings, salt storage sheds, bridge superstructures, among others (Barbero and DeVivo, 1999). However, there are several problems related to its use that demands in-depth studies (Akbulut, Gundogdu and Sengül, 2010). Due to its importance, the buckling of columns of fiber-reinforced composite materials has been extensively studied (Barbero and Tomblin, 1994;Barbero, 2000;Puente, Insausti and Azkune, 2006;Kollár, 2002aKollár, , 2002bKollár, , 2003Kollár, , 2014Qiao and Shan, 2005;Cardoso, 2014, Cardoso, Harries and Batista, 2014, 2015.…”

Section: Introductionmentioning

confidence: 99%

Local buckling and post-critical behavior of thin-walled composite channel section columns

D’Aguiar

Parente

2018

Lat. Am. j. solids struct.

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This work presents a study of the behavior, performance and failure of thinwalled composite channel section columns. The study is carried-out using nonlinear finite element models of laminated columns, including geometric imperfections and material failure, as well as approximate analytical solutions based on the Classical Lamination Theory. The accuracy of the numerical model is assessed using experimental results available in the literature and very good results were obtained. The results show the influence of the column layup and wall thickness on the structural behavior of laminated columns, including the buckling mode and ultimate failure load. Finally, the numerical model is used to assess the accuracy of approximate closed-form expressions for evaluation of the local buckling loads of composite channel section columns.

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Section: Introductionmentioning

confidence: 99%

Local buckling and post-critical behavior of thin-walled composite channel section columns

D’Aguiar

Parente

2018

Lat. Am. j. solids struct.

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“…Akbulut et al. 22 had investigated the buckling behaviors of symmetric angle-ply and cross-ply laminated flat composite columns by theoretical analysis. Kolanu et al.…”

Section: Introductionmentioning

confidence: 99%

“…Ouinas and Achour 21 had conducted a buckling analysis of composite material square plates with and without elliptical notch using the FE (finite element) method. Akbulut et al 22 had investigated the buckling behaviors of symmetric angle-ply and crossply laminated flat composite columns by theoretical analysis. Kolanu et al 23 had studied the buckling mode shapes, critical buckling load, postbuckling results of the blade stiffened panel with FE and experiment.…”

Section: Introductionmentioning

confidence: 99%

Tensile progressive damage and compressive postbuckling analysis of open-hole laminate composites

Kang

Zhang

et al. 2020

Journal of Reinforced Plastics and Composites

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Laminate composites contain holes as a means of connection in industrial applications. A better understanding of the mechanical properties of open-hole components is necessary. Herein, progressive damage postbuckling analysis models are proposed for investigation of tensile damage and compressive buckling behaviors of open-hole laminate composites. The progressive damage model is based on failure criteria provided by the continuum damage mechanics model; virtual crack closure technology was employed to calculate the energy release rate for crack delamination in compressive postbuckling analysis. The models were utilized to analyze variations in the tensile and compressive mechanical properties, failure process, and buckling evolution of open-hole laminate composites using finite element analysis. The tensile failure patterns and failure processes of plies with different open-hole laminate composite angles were obtained and analyzed. Buckling characteristics, as well as the progression of buckling onset, buckling propagation, crack delamination, unstable delamination, and global buckling, were investigated. The influence of delamination crack length and crack distribution on the buckling properties of open-hole laminate composites are discussed in detail. Additionally, unstable and stable buckling characteristics were examined. The numerical results were in good agreement with theoretical and experimental results; damage initiated at the edge of a hole propagated to two sides with the onset of matrix damage, followed by fiber damage. The fiber damage of a 0°-ply led ultimately to laminate failure. The laminate with a symmetrical crack distribution showed stable buckling, whereas a short, nonsymmetrical distribution of cracks usually led to unstable buckling and delamination.

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“…A C 0 FE formulation using HSDT has been presented by Pradyumna and Bandyopadhyay [15] to study buckling behavior of laminated composite conoids and hyparshell. Akbulut et al [16] calculated critical buckling loads of composite stepped columns using FEM. Komur et al [17] used FEM to study the buckling characteristic of composite plates with circular and elliptical cutouts.…”

Section: Introductionmentioning

confidence: 99%

Dual-axis buckling of laminated composite skew hyperbolic paraboloids with openings

Chaubey

Jha

Kumar

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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The dual-axis buckling of Laminated composite skew hyperbolic paraboloid with cutouts subjected to the in-plane biaxial and the shear load is investigated for various boundary conditions using the present mathematical model. Variation of transverse shear stresses is represented by a second-order function across the thickness, and the cross-curvature effect is also included via strain relations. The transverse shear stress-free condition at the shell top and bottom surfaces is also satisfied. This mathematical model (having a realistic second-order distribution of transverse shear strains across the thickness of shell) requires unknown parameters only at the reference plane. For generality in the present analysis, nine-node curved isoparametric element is used. So far, no solution exists in the literature for dual-axis buckling problem of laminated composite skew hyperbolic paraboloids with cutouts. As no result is available for the present problem, the present model is compared with suitable published results and then it is extended to analyze biaxial and shear buckling of laminated composite skew hyperbolic paraboloids. A C 0 finite element coding in FORTRAN is developed to generate many new results for different boundary conditions, skew angles, lamination schemes, etc.

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Buckling behaviors of laminated composite stepped flat columns

Cited by 12 publications

References 16 publications

Local buckling and post-critical behavior of thin-walled composite channel section columns

Local buckling and post-critical behavior of thin-walled composite channel section columns

Tensile progressive damage and compressive postbuckling analysis of open-hole laminate composites

Dual-axis buckling of laminated composite skew hyperbolic paraboloids with openings

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