Article
Engineering, Civil
M. Alimoradzadeh, S. D. Akbas
Summary: Nonlinear vibration analysis of a carbon nanotube-reinforced composite beam resting on a nonlinear viscoelastic foundation is investigated. The material properties of the composite beam are considered based on different distributions of reinforced carbon nanotubes in a polymeric matrix. Nonlinear partial differential equations are derived using Hamilton's principle and the Euler-Bernoulli beam theory. The Galerkin's decomposition technique is used to discretize the equations and solve the resulting nonlinear ordinary differential equation using the multiple time scale method. The study explores the effects of different reinforcement patterns and linear and nonlinear damping coefficients on the nonlinear vibration responses and phase trajectory of the carbon nanotube-reinforced composite beam.
GEOMECHANICS AND ENGINEERING
(2023)
Article
Mathematics, Applied
Ahmad Mamandi
Summary: In this paper, the frequency stability analysis for a viscoelastic carbon nanotube under the Kelvin-Voigt material model with slip boundary condition on a viscoelastic foundation and axial load is conducted using nonlocal Euler-Bernoulli thin beam theory. The governing equations of motion and their associated boundary conditions are derived using the Hamilton principle. The stability analysis is performed using mode summation technique and extended Galerkin method, and the effects of various parameters on the occurrence of instability modes are investigated.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Construction & Building Technology
M. Alimoradzadeh, S. D. Akbas
Summary: This paper investigates the nonlinear free vibration analysis of a functionally graded beam resting on a nonlinear viscoelastic foundation under uniform temperature rising. The finite strain theory is used to consider the nonlinear strain-displacement relationship. The governing nonlinear dynamic equation is derived based on the finite strain theory using Hamilton's principle. The Galerkin's decomposition technique is used to discretize the equation, which is then solved with the multiple time scale method. The effects of temperature rising, material distribution parameter, and nonlinear viscoelastic foundation parameters on the nonlinear free response and phase trajectory are investigated.
STEEL AND COMPOSITE STRUCTURES
(2022)
Article
Mechanics
Tao Hai, Murtadha M. Al-Masoudy, Saleh Alsulamy, Mohamed Hechmi El Ouni, A. Ayvazyan, Abhinav Kumar
Summary: This research investigates the size-dependent forced vibration analysis of an embedded cross/angle-plies laminated composite nanoplate on a viscoelastic foundation under a moving load. The governing motion equations are derived using the Hamiltonian principle based on a four-variable refined higher-order shear deformation theory (RHSDT) and the Eringen nonlocal differential model (ENDM) to predict the size-dependent effects. A time-dependent system of state-space and an analytical solution method are implemented to solve the equations for the first time, examining the effect of lay-up numbers and sequences, fiber orientations, elastic/viscoelastic foundation coefficients, and nanoplate geometries on the size-dependent dynamic response of the laminated composite nanoplate under a moving concentrated load with different velocity and time history.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Quoc-Hoa Pham, Van Ke Tran, Trung Thanh Tran, Van Chinh Nguyen, Ashraf M. Zenkour
Summary: This article develops a novel finite element formulation based on nonlocal theory to analyze the vibration of viscoelastic orthotropic nanoplates resting on the variable viscoelastic foundation (VEF). The mechanical properties of the nanoplate are assumed to be viscoelastic orthotropic according to Kelvin's model. The variable VEF consists of two layers: a shear layer with constant stiffness, and the other layer is described as a system composed of alternating damping and springs, with variations only in the x-axis. Motion equations of the nanoplates are established using Hamilton's principle, a refined higher-order shear deformation plate theory (HSDT), and nonlocal theory. The results are verified through reliable publications, and factors influencing the vibration of orthotropic nanoplates resting on the variable VEF are discussed.
COMPOSITE STRUCTURES
(2023)
Article
Acoustics
Ahmed E. Abouelregal
Summary: This study investigates the thermoelastic vibration of a viscoelastic microbeam resting on the Winkler foundation using fractional-order theory, replacing the Kelvin-Voigt model with a new form. The effects of various parameters on the microbeam response, such as viscosity coefficient, axial load, fractional derivative order, laser pulse duration, and foundation parameter, are explained and discussed in detail.
JOURNAL OF VIBRATION AND CONTROL
(2021)
Article
Materials Science, Composites
Yan Yuan, Zhiqiang Niu, John Smitt
Summary: This paper studies the vibration analysis of viscoelastic nanobeams reinforced with functionally graded carbon nanotubes subjected to magneto-hygro-thermo loading, taking into account the thickness stretching effect. The frequency of the nanobeams is analyzed considering the effects of size effect parameters, elastic foundation factors, distributions of carbon nanotubes, hygrothermal environment, and viscoelastic parameter.
ADVANCED COMPOSITE MATERIALS
(2023)
Article
Mechanics
Guoliang Liu, Shengbin Wu, Davood Shahsavari, Behrouz Karami, Abdelouahed Tounsi
Summary: This article investigates the dynamic deflection response of exponentially functionally graded material (EFGM) nanoplate considering the role of porosities when embedded in a visco-elastic foundation and subjected to moving load, for the first time. The effective material properties are found using an exponential model of the rule of mixture. A state-space method is developed to solve the time-dependent governing motion equations and study the effects of various parameters on the forced vibration of the embedded nanoplate.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Mechanics
Ashraf M. Zenkour, Hela D. El-Shahrany
Summary: In this study, the vibration response and damping behavior of a multilayered composite plate with viscoelastic faces and homogenous core were analyzed, aiming to optimize the design of composite structural systems and accurately predict the vibration behavior under thermal/hygrothermal environments. The results showed that by combining passive and active strategies, the control systems of structural applications can be greatly improved.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Engineering, Civil
Zeinab Heidary, Afsaneh Mojra
Summary: The vibrational behavior of carbon nanotubes conveying magnetic-fluid flow and resting on a viscoelastic foundation is investigated in this study. Results show that the magnetic field and the viscoelastic foundation affect the stability of the system, while the temperature variation may improve or deteriorate the stability.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2022)
Article
Physics, Multidisciplinary
R. Ansari, S. Nesarhosseini, M. Faraji Oskouie, H. Rouhi
Summary: A size-dependent Bernoulli-Euler beam model for buckling analysis of piezoelectric nanobeams considering flexoelectricity influence is presented, utilizing stress-driven nonlocal theory to capture size effects. The nanobeams are assumed to be embedded in an elastic medium, and governing equations including nonlocal and flexoelectricity effects are obtained using a variational approach. The study also proposes a numerical solution approach for calculating buckling loads of piezoelectric nanobeams with different boundary conditions, and investigates the effects of flexoelectricity, nanoscale, and elastic foundation on buckling behavior through numerical examples.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Engineering, Civil
Ali Alnujaie, Seref D. Akbas, Mohamed A. Eltaher, Amr Assie
Summary: This paper investigates the forced dynamic response of thick functionally graded beam on a viscoelastic foundation, including porosity impacts, using finite element method. The effects of porosity coefficient, porosity distribution, and foundation parameters on the dynamic responses of the beam are discussed. The current model is found to be efficient in various applications such as aerospace, nuclear, power plane sheller, and marine structures.
GEOMECHANICS AND ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Xinte Wang, Juan Liu, Biao Hu, Zhaonian Li, Bo Zhang
Summary: This study analyzes the wave propagation characteristics of porous functionally graded piezoelectric material (FGPM) nanoshells resting on a viscoelastic foundation. The governing equations are derived using the first-order shear deformation theory and Hamilton's principle, and the motion equations are obtained using the nonlocal strain gradient theory. A parametric investigation reveals that the influence of various parameters on the frequency of waves in the FGPM is thickness-dependent. The findings provide insights for the optimal design of FGPM nanoshells and further research on nanomaterials.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Olga Martin
Summary: The nonlinear dynamic analysis of a fractional viscoelastic nanotube resting on a foundation with simply-supported boundary conditions was conducted using a fractional Zener model. Various methods such as a new variational iteration method, Laplace transform, Bessel functions theory, and binominal series were utilized to solve the governing equation. The study investigated the effects of nonlocal parameters, fractional order, and viscoelastic foundation on the transverse displacements of the nanostructure, with validation performed by comparing results with existing literature. The proposed algorithm for solving the integral-differential governing equation is beneficial for engineering design of biological nano-sensors and nanoscale devices on a viscoelastic foundation.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Mechanics
R. Ansari, M. Faraji Oskouie, M. Roghani, H. Rouhi
Summary: This paper presents a nonlinear formulation for beam-type structures using stress-driven nonlocal theory within different boundary conditions. The study investigates the bending response of beams under various conditions and compares the linear and nonlinear results using a numerical method. The influences of factors such as volume fraction/distribution pattern of graphene platelets, nonlocality, elastic foundation, and geometrical parameters are examined.
Article
Mechanics
R. Barretta, S. A. Fazelzadeh, L. Feo, E. Ghavanloo, R. Luciano
COMPOSITE STRUCTURES
(2018)
Article
Engineering, Mechanical
Esmaeal Ghavanloo, Mohammad Ali Maneshi
JOURNAL OF ENGINEERING MECHANICS
(2018)
Article
Engineering, Aerospace
M. Rezaei, S. A. Fazelzadeh, A. Mazidi, H. Haddad Khodaparast
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING
(2019)
Article
Engineering, Mechanical
E. Ghavanloo, A. Abbasszadehrad
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING
(2019)
Article
Thermodynamics
S. Ahmad Fazelzadeh, Sajjad Rahmani, Esmaeal Ghavanloo, Pier Marzocca
JOURNAL OF THERMAL STRESSES
(2019)
Article
Materials Science, Multidisciplinary
A. R. Ghanipour, E. Ghavanloo
MATERIALS RESEARCH EXPRESS
(2019)
Article
Engineering, Multidisciplinary
Ehsan Izadpanahi, Siavash Rastkar, Ioannis Zisis, S. Ahmad Fazelzadeh, Pezhman Mardanpour
APPLIED MATHEMATICAL MODELLING
(2019)
Letter
Cardiac & Cardiovascular Systems
Rafael Shimkunas, Bence Hegyi, Zhong Jian, John A. Shaw, Mohammad A. Kazemi-Lari, Debika Mitra, J. Kent Leach, Xiaocen Li, Mark Jaradeh, Nicholas Balardi, Yi-Je Chen, Ariel L. Escobar, Anthony J. Baker, Julie Bossuyt, Tamas Banyasz, Nipavan Chiamvimonvat, Kit S. Lam, Donald M. Bers, Leighton T. Izu, Ye Chen-Izu
CIRCULATION RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Mohammad A. Kazemi-Lari, John A. Shaw, Alan S. Wineman, Rafael Shimkunas, Zhong Jian, Bence Hegyi, Leighton Izu, Ye Chen-Izu
Summary: This article introduces a new method that incorporates viscoelasticity into the inclusion solution, aiming to provide a more accurate study on the relationship between cellular mechanics and biochemical signals.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2021)
Article
Physics, Multidisciplinary
Razie Izadi, Ali Nayebi, Esmaeal Ghavanloo
Summary: A multiscale method was developed to predict Young's modulus of fullerene-reinforced polymer nanocomposites, incorporating molecular dynamics simulations and micromechanics models. Comparison between numerical results from the proposed models and MD simulations showed good agreement, and an extension for the Halpin-Tsai model was proposed for predicting Young's modulus of FRPNs.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Biology
Leighton Izu, Rafael Shimkunas, Zhong Jian, Bence Hegyi, Mohammad Kazemi-Lari, Anthony Baker, John Shaw, Tamas Banyasz, Ye Chen-Izu
Summary: The heart has two intrinsic mechanisms to enhance contractile strength that help maintain cardiac output in response to increased mechanical load. These mechanisms include an immediate length-dependent increase of contraction force via the Frank-Starling mechanism and a stress-dependent Anrep effect that slowly increases contraction force to recover chamber volume towards its initial state.
Article
Mechanics
Esmaeal Ghavanloo, Mohamed Shaat
Summary: In this paper, a new relaxation model that considers the nonlocal fields of Kelvin-Voigt viscoelastic materials is developed. The model investigates the influence of nonlocal, non-neighbor interactions on wave propagation in viscoelastic media and examines the contrasting effects of longitudinal and transverse nonlocal fields on wave dispersion. The numerical results reveal two mechanisms of wave damping in viscoelastic materials, namely explicit damping caused by viscosity and implicit damping caused by nonlocal effects.
Article
Mechanics
Sajad Karampour, Esmaeal Ghavanloo, S. Ahmad Fazelzadeh
Summary: This study investigates the in-plane free vibration of elastic metamaterial circular curved beams. The effective material properties of the beams are obtained through the two-step homogenization method. The governing equation of motion is derived using the Euler-Bernoulli curved beam theory. The results show that the metamaterial curved beams have diverse future applications.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Mechanics
Sajad Karampour, Esmaeal Ghavanloo, S. Ahmad Fazelzadeh
Summary: This paper investigates the in-plane vibration characteristics of square metamaterial plates made of coated spherical particles embedded in a matrix. The effective material properties of the plates are obtained using a homogenization method. The governing equations of in-plane vibration are derived and solved analytically. The proposed formulations are verified using finite element method software.
Proceedings Paper
Engineering, Multidisciplinary
Mohammad A. Kazemi-Laria, Anthony D. Dostine, Jiadi Zhang, Alan S. Wineman, John A. Shaw
BIOINSPIRATION, BIOMIMETICS, AND BIOREPLICATION IX
(2019)
Article
Nanoscience & Nanotechnology
Spyridon G. Kosionis, Emmanuel Paspalakis
Summary: In this study, we theoretically investigate the pump-probe response and the four-wave mixing spectrum in a hybrid system composed of a semiconductor quantum dot and a spherical metal nanoparticle. Using a density matrix methodology, we calculate the absorption/gain, dispersion, and four-wave mixing spectra, and analyze their spectral characteristics. We also apply the metastate theory and the dressed-state picture to predict the positions of the spectral resonances.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
L. S. Lima
Summary: This study investigates quantum correlation and entanglement in the non-Hermitian Hubbard model. By analyzing quantum entanglement measures such as entanglement negativity and entropy, the effect of non-Hermitian imaginary hopping on the system is explored. It is found that in the large... limit, the non-Hermiticity reverses the behavior of the ground state energy and low-lying excitations.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Nam-Chol Ri, Chung-Sim Kim, Sang-Ryol Ri, Su-Il Ri
Summary: By decreasing the lattice thermal conductivity of GNR through chemical derivation and strain, enhancing the thermoelectric properties of the electron part can be an important method to approach PGEC. This paper proposes synthesized hybrid systems formed by chemical derivation in the middle parts of b-AGNRs, and investigates the band structures and thermoelectric properties of the electron part under different strains. The results show that the band gaps of the systems significantly increase under different strains.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Le T. T. Phuong, Tran Cong Phong
Summary: This study investigates the effects of gas molecules adsorbed on /312-borophene on its electronic heat capacity and thermal Schottky anomaly. The results show that the adsorbed gas molecules have different impacts on the electronic heat capacity, leading to the generation of various new energy levels.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Tianyan Jiang, Jie Fang, Wentao Zhang, Maoqiang Bi, Xi Chen, Junsheng Chen
Summary: This paper investigates the adsorption and sensing properties of transition metal-doped WSSe gas-sensitive devices towards H2, CO, and CO2 gases related to thermal runaway in Li-ion batteries using density functional theory. The results show that Ti, Mn, and Mo dopants preferentially bind to the S-surface of the WSSe monolayer, and all three monolayers exhibit significantly improved sensing characteristics, with chemisorption towards CO. Band structure analysis suggests that the Ti-WSSe monolayer has the potential to be used as a resistive CO detection sensor. Recovery time calculations indicate the reuse capabilities of the gas-sensitive devices. Mn-WSSe monolayer shows potential for H2 detection, while Mo-WSSe monolayer is more suitable for CO2 detection. This work lays the foundation for potential gas-sensitive applications of WSSe monolayer in thermal runaway scenarios, advancing research in gas sensing domains.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Olga A. Alekseeva, Aleksandr A. Naberezhnov, Ekaterina Yu. Koroleva, Aleksandr Fokin
Summary: This study investigates the temperature dependence of crystal structure and dielectric response in a nanocomposite material containing porous glasses and embedded sodium nitrate. The results reveal a crossover point in the temperature dependence of the order parameter of the structural transition in sodium nitrate nanoparticles, as well as a decrease in activation energy of sodium ions hopping conductivity during heating.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Lijun Cheng, Fang Cheng
Summary: This paper investigates the effects of electric and magnetic fields on the Goos-Hanchen (GH) shift in a semi-Dirac system. The results show that the magnitude and direction of the GH shift depend on various factors such as incidence angle, electric barrier height and width, and magnetic field. It is observed that there is a saltus step in GH shifts at the critical magnetic field, which decreases with increased potential barrier thickness. Additionally, the GH shift can be significantly enhanced by applying an electric field in the III region. These findings are important for the development of semi-Dirac based electronic devices.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Alexander K. Fedotov, Uladzislaw E. Gumiennik, Julia A. Fedotova, Janusz Przewoznik, Czeslaw Kapusta
Summary: The study conducted an improved analysis of carrier transport in single-layer graphene and hybrid structures, showing the coexistence of negative and positive contributions in magnetoresistive effect. Various models were used to analyze the dependences on temperature and magnetic field, providing insights into the behavior of electrical resistance in the structures.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Xuhui Peng, Tao Chen, Ruotong Chen, Shizheng Chen, Qing Zhao, Xiaoping Huang
Summary: In this study, a novel method was proposed to design and fabricate optoelectronic devices with highly precise controlled photorefractive liquid crystal structures. By utilizing quantum dots and electric tuning, a regular periodic grating was formed in a quantum dot-doped liquid crystal volume illuminated by a laser standing evanescent wave field. The obtained optical diffraction pattern showed equally spaced light spots and high diffraction efficiency, indicating a significant change in the refractive index of the nanostructured device.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Kai-Hua Yang, Xiao-Hui Liang, Huai-Yu Wang, Yi-Fan Wu, Qian-Qian Yang
Summary: In this work, a theoretical model is proposed to achieve the controllability of quantum interference and decoherence. The effects of intralead Coulomb interaction, interdot tunneling, and electron-phonon interactions on differential conductance are investigated. The results show the appearance of destructive interference, Fano interference, and negative differential conductance in strong dot-lead tunneling regions, while a characteristic pattern of positive and negative differential conductances appears in the weak dot-lead tunneling regime.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Xueying Wang, Qian Ma, Qi Zhang, Yi Wang, Lingyu Li, Dongheng Zhao, Zhiqiang Liu
Summary: Porous double-channel alpha-Fe2O3/SnO2 heterostructures with tunable surface/interface transport mechanism were successfully fabricated by electrospinning and calcination. These heterostructures exhibited a large specific surface area, providing more active sites and enhanced adsorption capacity. The optimal composite materials showed the highest response value and the fastest response/recovery times to DMF, along with good cycling performance, long-term stability, and high gas selectivity.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Donglin Guo, Zhengmeng Xu, Chunhong Li, Kejian Li, Bin Shao, Xianfu Luo, Jianchun Sun, Yilong Ma
Summary: Using full electron-phonon interactions and the Boltzmann transport equation, this study investigates the phonon scattering channel and electrical properties of graphene under anharmonic phonon renormalization (APRN). The results show that the APRN reduces the phonon frequency and three-phonon phase space with increasing temperature, affecting the acoustic branch more than the optical branch. The thermal conductivity of graphene decreases after considering three- and four-phonon scattering, and the primary scattering channels are identified. Furthermore, the APRN increases the strength of electron-phonon coupling and leads to an increase in n-type electric resistance at room temperature.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Hongping Zhao, Man Zhao, Dayong Jiang
Summary: The study proposes a broadband photodetector with high response, high sensitivity, and controllable band by integrating quantum dots and highly conductive materials. The PD composed of ZnO film/PbS quantum dots heterostructure shows excellent photoresponse performance in the UV-Vis-NIR range, with the peak responsivity increased by 550%, accompanied by significant red shift, faster response, and recovery speed. By using RF magnetron sputtering to prepare ultra-thin ZnO film, the impact of PbS quantum dots on the photoelectric properties of ZnO film is comprehensively and systematically discussed.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Ye Xuan Meng, Liwei Jiang, Yisong Zheng
Summary: Manipulating magnetism by electrical means is an effective method for realizing ultra-low power spintronic-integrated circuits. In this study, it is demonstrated that the two-dimensional semiconductor material InO monolayer can be tuned to a half-metallic state by applying a gate voltage, providing theoretical guidance for adjusting two-dimensional magnetic semiconductors.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Nanoscience & Nanotechnology
Anusha Kachu, Aalu Boda
Summary: In this research, we investigated the impact of confinement nature on a neutral hydrogenic donor impurity in a quantum dot. The study demonstrated intriguing behavior in response to changes in potential shape, quantum dot parameters, and spin-orbit coupling strengths. The findings provide valuable insights into the fundamental physics of quantum dots and impurities and can aid in the design and optimization of QD-based technologies.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
