Transient Response of Auxetic Honeycomb Sandwich Shell Integrated with Laminated Three-Phase Polymer/GNP/Fiber Face Sheets Subjected to Low-Velocity Impact Load

Journal of Vibration Engineering & Technologies, Год журнала: 2025, Номер 13(1)

Опубликована: Янв. 1, 2025

Язык: Английский

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Static analysis of FGM plates using a general higher-order shear deformation theory

Composite Structures, Год журнала: 2025, Номер unknown, С. 118944 - 118944

Опубликована: Фев. 1, 2025

Язык: Английский

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Humid-thermal environment influence on dispersion of waves in sigmoid poroelastic cylindrical panels resting on sinusoidal elastic foundation

Mechanics Based Design of Structures and Machines, Год журнала: 2025, Номер unknown, С. 1 - 19

Опубликована: Апрель 25, 2025

Язык: Английский

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Thermoelastic analysis of FG-CNTRC cylindrical shells with various boundary conditions and temperature-dependent characteristics using quasi-3D higher-order shear deformation theory

Journal of Thermoplastic Composite Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 8, 2024

Abstract. This study focuses on performing static analysis of FG-CNTRC cylinder shells with various boundary restrictions, including thermomechanical responses. The governing equations are developed by taking into account the temperature-dependent material features, quasi-3D high-order shear deformation hypothesis, and normal transverse stress effect. temperature gradient inside thickness is expected to fluctuate, distribution pattern derived using heat transfer equation considering limitations. A singular trigonometric series Laplace transform used in an analytics solution address basic equations. primarily examines levels at border region. findings indicate that it crucial take abrupt rise area, particularly when shell’s relative length small. reciprocal impact pressure load also emphasized. Significant thermal may either augment or diminish levels, contingent upon orientation results this issue serve as foundation for calculation design relevant structures practical applications. Furthermore, serves a creation more intricate issues forthcoming.

Язык: Английский

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Static and dynamic buckling analysis of two-layer shells include auxetic honeycomb core combined with laminated three-phase polymer/GNP/fiber surface resting on Kerr elastic medium in hygro-thermal environments

Mechanics Based Design of Structures and Machines, Год журнала: 2024, Номер unknown, С. 1 - 38

Опубликована: Июнь 4, 2024

This article investigates the static and dynamic buckling behavior of a double-curved sandwich shell composed two layers via improved first-order shear deformation theory without using correction is utilized to model shell. The two-layer are held together by elastic pins, each layer made from an ultra-light auxetic honeycomb core (negative Poisson's ratio) reinforced tri-phase polymer, graphene nanoplatelets (GNP), fiber. supported Kerr medium in hygro-thermal environment assuming that temperature humidity only cause forces be applied tangentially do not change mechanical properties material. motion equations derived Hamilton's principle, then finite element method Bolotin used derive instability region accuracy these results confirmed comparison with established statements within specific conditions problem model. influence inputs on stability fully explored discussed. Additionally, this serves as crucial foundation for calculation design structures can integrate variety materials different low cost simplification.

Язык: Английский

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Finite element approach for free vibration and transient response of bi-directional functionally graded sandwich porous skew-plates with variable thickness subjected to blast load

Defence Technology, Год журнала: 2024, Номер 42, С. 83 - 104

Опубликована: Авг. 30, 2024

At the first time, finite element method was used to model and analyze free vibration transient response of non-uniform thickness bi-directional functionally graded sandwich porous (BFGSP) skew plates. The whole BFGSP skew-plates is placed on a variable visco-elastic foundation (VEF) in hygro-thermal environment subjected blast load. skew-plate permitted vary non-linearly over both length width skew-plate, thereby faithfully representing real behavior structure itself. analysis based four-node planar quadrilateral with eight degrees freedom per node, which approximated using Lagrange Q4 shape function C1 level non-conforming Hermite refined higher-order shear deformation plate theory. forced parameters are fully determined Hamilton's principle Newmark-β direct integration technique. Accuracy calculation program validated by comparing its numerical results those from reputable sources. Furthermore, thorough assessment conducted determine impact various responses skew-plate. findings paper may be development civil military structures situations that prone exceptional forces, such as explosions impacts

Язык: Английский

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High-Frequency Response Of Double-Layer Varying Thickness FG Plates Considering Sliding Motions

Опубликована: Авг. 30, 2024

Язык: Английский

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