Effect of ply-orientation and boundary conditions on the vibrational characteristics of laminated composite panels using HODST

Maharudra,; Arya, Bheemsha; Rajanna, T.

doi:10.1016/j.matpr.2019.10.062

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…The Reissner-Mindlin's plate theory is employed in this study based on the assumption that the mid-plane normal remains straight but not necessarily perpendicular to the axis after deflection. The displacement field are stated as [28]:…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…These shortcomings, namely locking and spurious mechanisms can be completely eliminated by developing a nine-noded heterosis element. This element exhibits improved characteristics as compared to each of the previous quadratic elements and offers high accuracy for extremely thin plate configuration [27][28][29]. Therefore, by taking into account various parameters such as trapezoidal shape, cutout offset, ply-orientation, plate edge condition and width to thickness ratio, an effort is made to study the impact of trapezoidal shape and the cutout offsets on the thermal buckling behaviour of trapezoidal plate through this work by adopting nine-noded heterosis element.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Trapezoidal Shapes on the Thermal Buckling Behaviour of Perforated Composite Plates

Maharudra¹,

Rajanna²,

Arya³

2021

Advances in Materials Science

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Thermal buckling study on the symmetric laminated composite trapezoidal plate with a circular cutout subjected to a uniform increase in temperature for various boundary conditions is explored in this paper. In a mathematical model, the first-order shear deformation principle is employed in accordance with the variational energy system. For acquiring the thermal buckling temperature, a nine-node heterosis plate relation has been used in the finite element formulation. By correlating the present findings with accessible literature, the effectiveness of the present formulation is verified. The impact of different parameters, such as trapezoidal shape, cutout size, ply-orientation, plate edge conditions and plate width to thickness ratio have been considered to study the effect of each parameters on the buckling characteristics of plate under various temperatures. It is observed from the study that each parametric investigation significantly affect the thermal buckling behaviour of trapezoidal plates.

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Section: Mathematical Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Trapezoidal Shapes on the Thermal Buckling Behaviour of Perforated Composite Plates

Maharudra¹,

Rajanna²,

Arya³

2021

Advances in Materials Science

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“…Ranjere et al. 11 analyzed the impact of boundary conditions and ply-orientations of laminated composites. Rajanna et al.…”

Section: Introductionmentioning

confidence: 99%

Effect of trapezoidal shapes and non-uniform edge loads on buckling behaviour of plates with cutouts

Ranjere¹,

Rajanna²,

Arya³

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Crucial buckling loads of composite laminates are typically determined by employing analytical techniques based on the presumptions that the plates are susceptible to uniform edge loads, ignoring the fact that the practical assemblies are regularly exposed to different non-uniform edge loads. The current research paper is centered on the buckling behaviour of different patterns of trapezoidal composite laminates with cutouts under the application of non-uniform in-plane edge loads by employing finite element technique. To achieve this, the panel is discretized by using 9-noded heterosis plate element by employing the impact of shear deformation and rotary inertia. For a given load and the shape of panel, the stress concentration within the panel is highly non-uniform in nature. Hence, a dynamic approach has been employed to calculate the buckling loads. The accuracy of the method is verified by relating the obtained results with existent research. The impact of various variables including the size of the cutout, non-uniform edge loads, boundary conditions, ply alignments and panel trapezoidal shape ratio has been considered to examine the buckling behavior of trapezoidal panels. Buckling load factor optimization using CCD and RSM has also been carried out in detail.

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Influence of Trapezoidal Shapes and Linearly varying Edge Loads on the Buckling Characteristics of Plates with Cutouts

Ranjere¹,

Rajanna²,

Arya³

2021

J. Inst. Eng. India Ser. C

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Effect of ply-orientation and boundary conditions on the vibrational characteristics of laminated composite panels using HODST

Cited by 7 publications

References 8 publications

Effect of Trapezoidal Shapes on the Thermal Buckling Behaviour of Perforated Composite Plates

Effect of Trapezoidal Shapes on the Thermal Buckling Behaviour of Perforated Composite Plates

Effect of trapezoidal shapes and non-uniform edge loads on buckling behaviour of plates with cutouts

Influence of Trapezoidal Shapes and Linearly varying Edge Loads on the Buckling Characteristics of Plates with Cutouts

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