A study of transient response of initially stressed composite sandwich folded plates

Nayak, Ajaya K.; Shenoi, R.A.; Blake, J.I.R.

doi:10.1016/j.compositesb.2012.07.043

Cited by 15 publications

(5 citation statements)

References 21 publications

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“…Table 3 shows comparisons of the nondimensional frequency Ω with respect to the folded plate with Free boundary condition. Allman [3] gives experiment results and Nayak et al [6] present analytical solutions by the finite element method considering transverse shear deformation and rotational inertia in free vibration analysis of the folded plates.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…Free vibration of composite folded plates considering transverse shear deformation and rotational inertia has been analyzed by finite element method [5]. In addition, Nayaka et al [6] presented transient response of composite sandwich folded plates by the use of finite element method. Most of these researches are analyzed by finite element method and detailed studies on the accuracy of solutions have been indicated.…”

Section: Introductionmentioning

confidence: 99%

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Free Vibration Analysis of L-Shaped Folded Thin Plates

Sekine

2019

EPI-IJE

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Free vibration analysis of L-shaped folded thin plates having various boundary conditions is presented. Vibration properties of the folded plates are analyzed by means of the Ritz method. Displacement functions satisfying the geometric boundary conditions are assumed in the form of double power series. The interconnection of plate elements of the folded plates is defined by translational and rotational coupling springs. The generalized eigenvalue problem, which is derived by means of minimizing the energy functional, is solved to determine the natural frequencies and mode shapes. The accuracy and validity of the present solutions are demonstrated through convergence studies and comparisons with the results from the literature and FEM (finite element method) analysis solutions. Numerical results are presented for different conditions, such as width ratio, length ratio and the four types of boundary condition.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Free Vibration Analysis of L-Shaped Folded Thin Plates

Sekine

2019

EPI-IJE

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“…Based on Naghdi shell equations, Hernández [24] combined the MITC4 and a standard quadratic membrane element enriched with drilling DOFs to analyze the free vibration response of folded plates. By using other kinds of four-node shell elements, the transient response and geometrically nonlinear behavior of laminated composite folded plates were respectively investigated by Nayak [3] and Barbero [26]. In addition, basing on the first order shear deformation theory (FSDT), Niyogi et al [12] used a nine-node plate bending element with an additional drilling DOF to analyze the free and forced vibration responses of composite folded plate structures.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3]. In the early stage, due to restrictions in computational capacity, many methods which used simplified theories were developed to approximately predict the behavior of folded plate structures.…”

Section: Introductionmentioning

confidence: 99%

“…Some highlighted numerical methods that have been proposed to analyze folded plate structures are the finite strip element methods [13][14][15][16], the combined boundary elementtransfer matrix method [17], the finite element method (FEM) [3,12,[18][19][20][21][22][23][24][25][26][27][28], the mesh-free Galerkin method [2,29]. Among these methods, the FEM, which is highly appreciated by the effectiveness and the extensibility for various problems, has taken much attention from researchers.…”

Section: Introductionmentioning

confidence: 99%

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Static and free vibration analyses of stiffened folded plates using a cell-based smoothed discrete shear gap method (CS-FEM-DSG3)

Nguyen-Minh

Nguyen-Thoi

Bui-Xuan

et al. 2015

Applied Mathematics and Computation

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The impact of different length hooked‐end fibers on the structural performance of RC folded plates

Katlav,

Turk,

Turgut

2024

Structural Concrete

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In this article, the effect of hooked‐end fibers with different lengths on the structural performance of RC‐FPs fabricated from hybrid fiber‐reinforced self‐compacting concrete (HFR‐SCC) was investigated. For this purpose, a total of 15 full‐scale test samples having different plate thicknesses (60, 70, and 80 mm) were produced and tested under bending after a 90‐day curing period. Subsequently, load‐carrying capacity (Pp), flexural toughness (Fth), and deflection ductility index (μu) of all RC‐FPs were found using load‐deflection curves obtained from bending tests, while crack patterns were drawn from the samples tested. Besides, high‐precision contour plots are proposed to estimate the structural performance values of RC‐FPs depending on plate thickness and fiber reinforcing index. As a result, the best structural performance in RC‐FPs was obtained from the use of a longer hooked‐end steel fiber together with micro steel fiber as a hybrid, followed by the lower length hooked‐end steel fibers as singles. Specifically, irrespective of the plate thickness, the hybrid use of longer hooked steel fibers in combination with micro fibers increased the Pp, Fth, and μu values of RC‐FPs on average 1.67, 1.76, and 1.57 times, respectively, compared to the control specimens. As for when using the lower length hooked‐end fiber as single, the values of Pp, Fth, and μu increased on average 1.57, 1.69, and 1.30 times. Lastly, whereas plate thickness has little effect on improving the structural performance of thin‐walled carrier elements such as RC‐FPs, adding fibers in different lengths, aspect ratios, and combinations is much more effective. The collective test results demonstrate that using RC‐FPs made of HFR‐SCC in the roof carrier system of large span structures could improve structural performance, aesthetics, erection time, and earthquake behavior thanks to reduced dead load.

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A study of transient response of initially stressed composite sandwich folded plates

Cited by 15 publications

References 21 publications

Free Vibration Analysis of L-Shaped Folded Thin Plates

Free Vibration Analysis of L-Shaped Folded Thin Plates

Static and free vibration analyses of stiffened folded plates using a cell-based smoothed discrete shear gap method (CS-FEM-DSG3)

The impact of different length hooked‐end fibers on the structural performance of RC folded plates

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