Buckling Stability and Vibration Characteristics of Functionally Graded Graphene Platelet-Reinforced Composites Multi-Arc Concave Honeycomb Sandwich Panels Under Thermal Loading DOI
Wenhao Yuan, Haitao Liao, Ruxin Gao

et al.

International Journal of Structural Stability and Dynamics, Journal Year: 2023, Volume and Issue: 24(18)

Published: Nov. 3, 2023

The utilization of functionally graded graphene platelet-reinforced composites (FG-GPLRC) and honeycomb sandwich constructions is prevalent in the field engineering. Therefore, it crucial to investigate buckling vibration properties these materials under heat circumstances. This paper specifically focuses on thermal characteristics a novel multi-arc concave plate (MACHSP) equipped with an adjustable positive-negative Poisson’s ratio. governing equations motion for system are derived based first-order shear deformation theory conjunction Hamilton’s principle. formulation system’s characteristic equation involves establishment displacement functions that satisfy distinct boundary conditions. Using computational programming, natural frequencies, mode shapes, critical temperatures MACHSP three different FG-GPLRC distributions influences determined. Subsequently, results compared outcomes from finite element simulations findings previously published literature. Additionally, amplitude-frequency response structure harmonic excitation analyzed, followed by discussion impact structural parameters its characteristics. indicate established theoretical model predicting distribution aligns well simulation models prior research. In contrast solid plates, not only achieves substantial reduction weight but also demonstrates significant increase frequency. Furthermore, platelets have potential enhance structure’s frequency values temperatures. Lastly, various exert notable influence performance.

Language: Английский

On the variable length scale parameter for agglomeration of nanoparticles in nanocomposites DOI
Armita Beitollahi, Maziar Janghorban, Yousef Bazargan-Lari

et al.

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Since nanocomposites have recently been used in a wide range of industries, scientists are becoming increasingly interested simulating these kinds materials. Engineers outcomes that match simulations nanocomposites. Examining the impact nanoparticle aggregation computations is one step accurately modeling reinforced nanocomposite. With regard to size-dependent continuum modeling, this work aims evaluate dynamic behavior small-scaled composites with carbon nanotubes (CNTs) light CNT aggregations. In simulation nanotube-reinforced micro- or nanocomposite, taking into account more length scale parameters—which typically thought constant value—is crucial. This innovative it examines how affects nanocomposite structure while considering variable parameter. We address and solve an example using modified couple stress theory (MCST). The effectiveness employing parameter (LSP) MCST confirmed by conducting comparison between proposed strategy experimental molecular (MD) results. A curved microbeam examined for problem, alterations agglomeration parameters investigated detail.

Language: Английский

Citations

2
Examining three distinct rheological models with flexoelectric effect to investigate Love‐type wave velocity in bedded piezo‐structure DOI
Seema,

Abhinav Singhal

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2024, Volume and Issue: 104(11)

Published: Sept. 22, 2024

Abstract The transference of the surface seismic wave at loosely bonded common interface a visco‐piezo composite structure is examined in current work. With flexoelectric effect taken into account, composed viscoelastic layer embedded on piezoelectric substrate. shear stiffness upper thought to be described by Kelvin–Voigt model. An analytical separable variable method used derive complex dispersion relation for both electrically open and short circuit scenarios. A numerical example presented demonstrate significant influence several influencing parameters wave's phase velocities attenuation coefficients. Additionally, graphic comparison three rheological models – Maxwell, Newton covered. Results indicate that curve pertaining Maxwell model lowest than Some major outcomes are highlighted here as: prominent bonding parameter well‐proportional velocity inversely proportional coefficient, flexoelectricity has an intensive impact coefficient curves. This theoretical study leads understanding piezo‐flexo coupling its potential application design sensors, actuators, energy harvesters nano‐electronics.

Language: Английский

Citations

9
Review of Collocation Methods and Applications in Solving Science and Engineering Problems DOI Open Access

Weiwu Jiang,

Xiao‐Wei Gao

Computer Modeling in Engineering & Sciences, Journal Year: 2024, Volume and Issue: 140(1), P. 41 - 76

Published: Jan. 1, 2024

The collocation method is a widely used numerical for science and engineering problems governed by partial differential equations.This paper provides comprehensive review of methods their applications, focused on elasticity, heat conduction, electromagnetic field analysis, fluid dynamics.The merits the can be attributed to need element mesh, simple implementation, high computational efficiency, ease in handling irregular domain since type node-based method.Beginning with fundamental principles method, discretization process continuous elucidated, how approximation solutions solving equations are explained.Delving into historical development methods, earliest applications key milestones traced, thereby demonstrating evolution within realm computation.The mathematical foundations encompassing selection interpolation functions, definition weighting derivation integration rules, examined detail, emphasizing significance comprehending method's effectiveness stability.At last, practical application contexts emphasized, including conduction simulations, coupled dynamics simulations.These specific case studies underscore broad applicability addressing complex challenges.In conclusion, this puts forward future trend through rigorous analysis discussion, facilitating further advancements research these fields.

Language: Английский

Citations

7
A Nonlinear Hermite-Based Ritz Method for Dynamic Snap-Through of Kelvin Sandwich Arches on Discontinuous Elastic Foundations under Moving Loads DOI

Guoqiang Zhang,

Hui Shao, Yongjian Zhou

et al.

Communications in Nonlinear Science and Numerical Simulation, Journal Year: 2025, Volume and Issue: unknown, P. 108925 - 108925

Published: April 1, 2025

Language: Английский

Citations

0
Application of bilateral iterative displacement control method to nonlinear free vibration analysis of dual-FG nanocomposite circular plates DOI
Juan Wang,

Xie Jiang

Communications in Nonlinear Science and Numerical Simulation, Journal Year: 2024, Volume and Issue: 138, P. 108236 - 108236

Published: July 22, 2024

Language: Английский

Citations

3
Geometric imperfection sensitivity of nonlinear vibration responses of laminated beams under thermal shock DOI
Jianchun Li, Ke Xie, Yuewu Wang

et al.

Communications in Nonlinear Science and Numerical Simulation, Journal Year: 2023, Volume and Issue: 130, P. 107791 - 107791

Published: Dec. 16, 2023

Language: Английский

Citations

7
Nonlinear Forced Vibration of a Concentrated Mass Loaded Axially Moving Plate Considering the Gravity Effect DOI

Mingjun Song,

Guo Yao

Journal of Vibration Engineering & Technologies, Journal Year: 2024, Volume and Issue: unknown

Published: March 16, 2024

Language: Английский

Citations

2
Subsonic aeroelastic behaviors of a composite plate with embedded MFC actuators under hygrothermal environment DOI

Jingbo Duan,

Buqing Xu, Xiaoyu Xue

et al.

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 200, P. 111906 - 111906

Published: April 13, 2024

Language: Английский

Citations

2
Stability of higher-order lattice composite cylindrical shell reinforced with graphene platelets by means of a Chebyshev collocation-based semi-analytical approach DOI
Zuocai Dai, Y. Kiani

Engineering Structures, Journal Year: 2023, Volume and Issue: 296, P. 116952 - 116952

Published: Sept. 29, 2023

Language: Английский

Citations

6
Soft computational approach on the thermoelastic assessment of the sandwich beams with transversely functionally graded composite concrete face-sheets as an advanced building material DOI
Dandan Li, Peng Wang, Nadia Sarhan

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2023, Volume and Issue: 31(24), P. 6298 - 6318

Published: July 9, 2023

The core part of this study is comprised using the soft computational approach for analyzing thermoelastic reaction a concrete sandwich beam with transversely-graded composite face sheets as an advanced building material exposed to axially-directed abrupt thermal load. First all, relations governing motion are extracted from principles three-dimensional elasticity theory. Besides, time-variable heat conduction derived based on Fourier cooperating Lord–Shulman theorem transfer. Continuity displacements and stresses core's borders interacting taken into consideration. To find solution equations motion, Laplace transform in conjunction differential quadrature (DQA) utilized. Transforming system's space time domain done through extended expression Dubner Abate's approach. speed up process, bases optimizing deep neural network shuffled frog leaping algorithm (SFLA) implemented. Efficiency applied methods inspected though comparing their outcomes those obtained existing literature different boundary conditions.

Language: Английский

Citations

5