Structures, Journal Year: 2024, Volume and Issue: 63, P. 106269 - 106269
Published: April 6, 2024
Language: Английский
International Journal of Structural Stability and Dynamics, Journal Year: 2024, Volume and Issue: 25(01)
Published: Feb. 14, 2024
This paper aims to analyze the wave propagation in functionally graded carbon nanotube-reinforced composite (FG-CNTRC) beams placed on a viscoelastic foundation utilizing an improved first-order shear deformation theory (FSDT). The material properties are derived from mixture rule. Four nanotube distribution patterns considered analysis. extended Hamilton’s Principle is utilized derive governing equations for CNTRC beam. A comparison between present results and those literature conducted validation. dispersion investigation mainly based phase group velocities. illustrate responses different CNT configurations. In addition, influence of CNTs volume fraction, stiffness parameters, damping coefficient characteristics examined.
Language: Английский
Citations
50
Construction and Building Materials, Journal Year: 2024, Volume and Issue: 414, P. 135047 - 135047
Published: Jan. 18, 2024
Language: Английский
Citations
18
Applied Sciences, Journal Year: 2024, Volume and Issue: 14(2), P. 687 - 687
Published: Jan. 13, 2024
This study investigates the sensitivity of dynamic properties in coupled curved beams reinforced with carbon nanotubes (CNTs) to thermal variations. Temperature-dependent (TD) mechanical are considered for poly methyl methacrylate (PMMA) be strengthened single-walled CNTs (SWCNTs), employing basic rule mixture define equivalent nanocomposites. The governing equations motion derived using a first-order shear deformation theory (FSDT) and Hamilton’s principle, accounting elastic interfaces modeled springs. A meshfree solution method based on generalized differential quadrature (GDQ) approach is employed discretize eigenvalue problem obtain frequency response structure. proposed numerical procedure’s accuracy verified against predictions literature homogeneous structural cases under fixed environmental temperature. systematic investigation assesses impact various geometric material properties, including curvature, boundary conditions, interfacial stiffness, CNT distribution patterns, vibrational behavior.
Language: Английский
Citations
6
Composites Part C Open Access, Journal Year: 2024, Volume and Issue: 14, P. 100458 - 100458
Published: April 6, 2024
In recent decades, there has been a significant rise in the utilization of composite materials for various engineering applications. These advanced offer potential to improve mechanical properties and vibration characteristics structural components. This particular study is dedicated enhancing performance coupled curved-curved beams that feature linear elastic mid-layer, achieved through incorporation carbon nanotubes (CNTs), graphene nanoplates (GNPs), oxide powder (GOPs). The governing equations system are solved using generalized differential quadrature (GDQ) method. While previous research primarily focused on use CNTs enhance behavior coupled-curved beams, this delves into multiple nanofillers purpose. An essential aspect modeling lies determining their equivalent properties. undertakes comparison between rule mixture (RoM) Halpin-Tsai methods calculating these properties, revealing frequencies derived from RoM method higher than those obtained approach. Additionally, highlights systems incorporating GNPs demonstrate at lower nanofiller volumes, with GOPs following ranking. However, hierarchy shifts volumes. arrangement within influenced by its boundary conditions, curvature bottom beam playing role affecting behavior. Increasing radius (R2) leads frequencies, which subsequently decrease R2 values.
Language: Английский
Citations
6
Materials, Journal Year: 2023, Volume and Issue: 16(6), P. 2222 - 2222
Published: March 10, 2023
In this study, the main goal of study was to understand effect carbon nanotube (CNT) additives on elastic behaviors textile-based composites. The materials have three phases: fiber fabric, epoxy matrix, and nanotubes. Different weight fractions CNTs were used (0% as a reference, 0.3%). Mechanical tests performed, such tension three-point bending beam tests. addition, composite material damages examined in detail. experimental results show that samples with CNT carried 9% 23% more axial tensile force capacity average than those NEAT. Besides, it understood adding 0.3% by MWCNT increases modulus approximately 9%. Finally, mechanical are supported analytical solutions successfully applied literature.
Language: Английский
Citations
9
Journal of Vibration Engineering & Technologies, Journal Year: 2024, Volume and Issue: 12(4), P. 6847 - 6863
Published: March 13, 2024
Abstract Objective The purpose of this work is to investigate the size-dependent free vibrations carbon nanotube-reinforced nanowires/nanobeams with movable ends. For purpose, two end conditions are considered for different nanotube distributions. size effect addressed modified couple stress theory, which includes a material length scale parameter. Methods In study, solution approach based on Fourier sine series and Stokes' transformation used. With help approach, both rigid can be investigated. Firstly, equation sets consisting infinite parameters derived. Then, eigenvalue problems obtained vibration nanowires/nanobeams. eigenvalues these give frequencies Conclusions in study used examine conditions. accuracy proven by various comparison studies. analyses carried out nanowire/nanobeam reinforced nanotubes, including rotary inertia effect. When nanowire/nanobeams nanotubes examined, it understood that parameter, distribution, volume fraction, rotational lateral spring cause significant changes vibration.
Language: Английский
Citations
3
Journal of Vibration Engineering & Technologies, Journal Year: 2024, Volume and Issue: unknown
Published: April 3, 2024
Language: Английский
Citations
3
Applied Mathematical Modelling, Journal Year: 2023, Volume and Issue: 121, P. 843 - 864
Published: May 26, 2023
Language: Английский
Citations
4
Published: Dec. 6, 2023
Nanofillers, also known as nanoparticles or nanomaterials, have revolutionized various industries by offering unique properties and opening up new possibilities for technological advancements. This manuscript explores the thermal of nanofillers their influence on matrix materials. Incorporating into polymers, ceramics, metals, composites has led to unprecedented enhancements in mechanical, thermal, electrical properties. These advancements enabled development advanced structural components, flexible electronics, energy storage devices. The highlights significance improving resistance efficiency materials high-temperature environments. Furthermore, role interface (TIMs) efficient heat dissipation electronic chapter provides insights specific conductivity nanofillers, highlighting impact particle size, shape, density measurement techniques, such differential scanning calorimetry (DSC), guarded hot plate method, transient hot-wire technique, plane source are discussed accurately determine values.
Language: Английский
Citations
1
Structures, Journal Year: 2024, Volume and Issue: 63, P. 106269 - 106269
Published: April 6, 2024
Language: Английский
Citations
0