Farzad Ebrahimi
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View article: Design and analysis of a Bioinspired auxetic metabeams energy harvester
Design and analysis of a Bioinspired auxetic metabeams energy harvester Open
This work investigates the effects of bioinspired auxetic meta-structures on bimorph piezoelectric cantilever energy harvester devices. Auxetic materials, characterized by a negative Poisson’s ratio, produce uniform stresses under mechanic…
View article: Bio-inspired coral reef-like NiCo-LDH nanostructure fabricated on carbon felt for high performance flexible supercapacitor
Bio-inspired coral reef-like NiCo-LDH nanostructure fabricated on carbon felt for high performance flexible supercapacitor Open
Technological advancements have spurred an emerging demand for flexible energy storage devices with high-power density and significant cycle stability. Here, an environmentally-friendly approach has been developed to synthesize coral reef-…
View article: Nonlinear poro-thermo-forced vibration in curved sandwich magneto-electro-elastic shells under hygrothermal environment
Nonlinear poro-thermo-forced vibration in curved sandwich magneto-electro-elastic shells under hygrothermal environment Open
This research employs a multiple scales perturbation approach to evaluate the nonlinear wave propagation behaviors of a doubly curved sandwich composite piezoelectric shell with a flexible core in a hygrothermal environment. Stress and str…
View article: Effect of Nonlocal Elasticity and Phase Lags on the Magneto Thermoelastic Waves in a Composite Cylinder with Hall Current
Effect of Nonlocal Elasticity and Phase Lags on the Magneto Thermoelastic Waves in a Composite Cylinder with Hall Current Open
In this study, the effect of nonlocal scale value and two phases lags on the free vibration of generalized magneto thermoelastic multilayered LEMV (Linear Elastic Material with Voids)/CFRP (Carbon Fiber Reinforced Polymer) composite cylind…
View article: Porosity Effects on Static Performance of Carbon Nanotube-Reinforced Meta-Nanocomposite Structures
Porosity Effects on Static Performance of Carbon Nanotube-Reinforced Meta-Nanocomposite Structures Open
A mixture of outstanding merits of polymer nanocomposites (PNCs) and metamaterials can lead to the development of ultra-light meta-nanomaterials whose high sensitivity can be efficiently used in wearable strain sensors. Thus, reliable data…
View article: Magnetic field effects on wave dispersion of piezo-electrically actuated auxetic sandwich shell via GPL reinforcement
Magnetic field effects on wave dispersion of piezo-electrically actuated auxetic sandwich shell via GPL reinforcement Open
This paper presents an analysis of the wave dispersion of a smart cylindrical shell that is composed of a graphene-reinforced nanocomposite (GRNC) at the top of the shell, functionally graded piezo magnetic material (FGPMM) at the bottom o…
View article: A Machine-Learning-Based Model for Buckling Analysis of Thermally Affected Covalently Functionalized Graphene/Epoxy Nanocomposite Beams
A Machine-Learning-Based Model for Buckling Analysis of Thermally Affected Covalently Functionalized Graphene/Epoxy Nanocomposite Beams Open
In this paper, a machine-learning model is utilized to estimate the temperature-dependent moduli of neat, thermally reduced graphene and covalently functionalized graphene/epoxy nanocomposites. In addition, the governed mathematical expres…
View article: Wave Dispersion Behaviors of Multi-Scale CNT/Glass Fiber/Polymer Nanocomposite Laminated Plates
Wave Dispersion Behaviors of Multi-Scale CNT/Glass Fiber/Polymer Nanocomposite Laminated Plates Open
In this paper, wave propagation in multi-scale hybrid glass fiber (GF)/carbon nanotube (CNT)/polymer nanocomposite plates is studied for the first time by means of refined higher-order plate theory. The hybrid nanocomposite consists of CNT…
View article: Static Stability Analysis of Mass Sensors Consisting of Hygro-Thermally Activated Graphene Sheets Using a Nonlocal Strain Gradient Theory
Static Stability Analysis of Mass Sensors Consisting of Hygro-Thermally Activated Graphene Sheets Using a Nonlocal Strain Gradient Theory Open
This paper develops a nonlocal strain gradient plate model for buckling analysis of graphene sheets under hygro-thermal environments with mass sensors. For a more accurate analysis of graphene sheets, the proposed theory contains two scale…
View article: Propagation of Flexural Waves in Anisotropic Fluid-Conveying Cylindrical Shells
Propagation of Flexural Waves in Anisotropic Fluid-Conveying Cylindrical Shells Open
In the present article, first-order shear deformation theory (FSDT) of the shell has been employed, for the first time, in order to analyze the propagation of the flexural waves in anisotropic fluid-conveying cylindrical shells. Four vario…
View article: A brief review on the influences of nanotubes' entanglement and waviness on the mechanical behaviors of CNTR polymer nanocomposites
A brief review on the influences of nanotubes' entanglement and waviness on the mechanical behaviors of CNTR polymer nanocomposites Open
Invention of carbon nanotube (CNT) in the 1990s introduced a new class of materials whose extraordinary mechanical, thermal, and electrical properties seemed appealing enough to the research community to devote their time and effort for th…
View article: Nonlinear magneto-thermo-elastic vibration of mass sensor armchair carbon nanotube resting on an elastic substrate
Nonlinear magneto-thermo-elastic vibration of mass sensor armchair carbon nanotube resting on an elastic substrate Open
The present paper aims at studying the nonlinear ultrasonic waves in a magneto-thermo-elastic armchair single-walled (SW) carbon nanotube (CNT) with mass sensors resting on a polymer substrate. The analytical formulation accounts for small…
View article: Agglomeration Effects on Static Stability Analysis of Multi-Scale Hybrid Nanocomposite Plates
Agglomeration Effects on Static Stability Analysis of Multi-Scale Hybrid Nanocomposite Plates Open
We propose a multiscale approach to study the influence of carbon nanotubes’ agglomeration on the stability of hybrid nanocomposite plates. The hybrid nanocomposite consists of both macro- and nano-scale reinforcing fibers dispersed in a p…
View article: A comprehensive review on modeling of nanocomposite materials and structures
A comprehensive review on modeling of nanocomposite materials and structures Open
This work presents a historical review of the researches procured by various scientists and engineers dealing with the nanocomposite materials and continuous systems manufactured from such materials. Nanocomposites are advanced type of wel…
View article: Vibration Analysis of Non-Uniform Imperfect Functionally Graded Beams with Porosities in Thermal Environment
Vibration Analysis of Non-Uniform Imperfect Functionally Graded Beams with Porosities in Thermal Environment Open
In the present study, thermo-mechanical vibration behavior of non-uniform beams made of functionally graded (FG) porous material are investigated under different thermal loadings for the first time. It is observed that during the fabricati…
View article: Modeling of smart magnetically affected flexoelectric/piezoelectric nanostructures incorporating surface effects
Modeling of smart magnetically affected flexoelectric/piezoelectric nanostructures incorporating surface effects Open
In this article, electromechanical buckling behavior of size-dependent flexoelectric/piezoelectric nanobeams is investigated based on nonlocal and surface elasticity theories. Flexoelectricity represents the coupling between the strain gra…
View article: Temperature distribution effects on buckling behavior of smart heterogeneous nanosize plates based on nonlocal four-variable refined plate theory
Temperature distribution effects on buckling behavior of smart heterogeneous nanosize plates based on nonlocal four-variable refined plate theory Open
This work presents a theoretical study for thermo-mechanical buckling of size-dependent magneto-electro-thermo-elastic functionally graded (METE-FG) nanoplates in thermal environments based on a refined trigonometric plate theory. Temperat…
View article: Buckling Analysis of Smart Size-Dependent Higher Order Magneto-Electro-Thermo-Elastic Functionally Graded Nanosize Beams
Buckling Analysis of Smart Size-Dependent Higher Order Magneto-Electro-Thermo-Elastic Functionally Graded Nanosize Beams Open
The present paper examines the thermal buckling of nonlocal magneto-electro-thermo-elastic functionally graded (METE-FG) beams under various types of thermal loading namely uniform, linear and sinusoidal temperature rise and also heat cond…
View article: An Investigation of Radial Vibration Modes of Embedded Double-Curved-Nanobeam-Systems
An Investigation of Radial Vibration Modes of Embedded Double-Curved-Nanobeam-Systems Open
The vibration of two curved nanobeams with coupling radial springs is considered. A nonlocalEuler-Bernoulli curved nanobeam model has been assumed in order to investigate the radial vibration ofthe double-curved-nanobeam-system (DCNBS) emb…
View article: Electromechanical buckling behavior of smart piezoelectrically actuated higher-order size-dependent graded nanoscale beams in thermal environment
Electromechanical buckling behavior of smart piezoelectrically actuated higher-order size-dependent graded nanoscale beams in thermal environment Open
In the present work, thermo-electro-mechanical buckling behavior of functionally graded piezoelectric (FGP) nanobeams is investigated based on higher-order shear deformation beam theory. The FGP nanobeam is subjected to four types of therm…
View article: Advances in Functionally Graded Materials and Structures
Advances in Functionally Graded Materials and Structures Open
Functionally graded materials (FGMs) were initially designed as thermal barrier materials for aerospace structures and fusion reactors and now they are also considered as potential structural materials for future high-speed spacecraft and …
View article: Deflection and vibration analysis of higher-order shear deformable compositionally graded porous plate
Deflection and vibration analysis of higher-order shear deformable compositionally graded porous plate Open
In this study the finite element method is utilized to predict the deflection and vibration characteristics of rectangular plates made of saturated porous functionally graded materials (PFGM) within the framework of the third order shear d…
View article: Investigating Surface Effects on Thermomechanical Behavior of Embedded Circular Curved Nanosize Beams
Investigating Surface Effects on Thermomechanical Behavior of Embedded Circular Curved Nanosize Beams Open
To investigate the surface effects on thermomechanical vibration and buckling of embedded circular curved nanosize beams, nonlocal elasticity model is used in combination with surface properties including surface elasticity, surface tensio…