Optimization of dynamic properties for laminated multiphase nanocomposite sandwich conical shell in thermal and magnetic conditions

Kolahchi, Reza; Keshtegar, Behrooz; Nguyen-Thoi, T.

doi:10.1177/10996362211020388

Cited by 46 publications

(6 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this work, in order to solve the motion equations and determine the dynamic instability region (DIR), DQM is employed. Hence, different order of differential equations of cylindrical shell can be converted to set of algebraic equations using following relations 21–32

\frac{d^{n} F ((),, x_{i}, θ_{j})}{{italicdx}^{n}} goodbreak= \sum_{k = 1}^{N_{x}} A_{ik}^{(n)} F ((),, x_{k}, θ_{j}) n goodbreak= 1, \dots, N_{x} goodbreak- 1,

\frac{d^{m} F ((),, x_{i}, θ_{j})}{d θ^{m}} goodbreak= \sum_{l = 1}^{N_{θ}} B_{jl}^{(m)} F ((),, x_{i}, θ_{l}) m goodbreak= 1, \dots, N_{θ} goodbreak- 1,

\frac{d^{n + m} F ((),, x_{i}, θ_{j})}{{dx}^{n} d θ^{m}} goodbreak= \sum_{k = 1}^{N_{x}} \sum_{l = 1}^{N_{θ}} A_{ik}^{(n)} B_{jl}^{(m)} F ((),, x_{k}, θ_{l}),

in which

A_{ik}^{(n)}

as well as

B_{jl}^{(m)}

define weighting coefficients and are expressed as

A_{}

…”

Section: Solving Proceduresmentioning

confidence: 99%

The effect of pharmaceutical nanoparticles and atherosclerosis in aorta artery on the instable blood velocity based on numerical method

Motaghedifar

Fakhar

Tabatabaei

et al. 2022

Numer Methods Biomed Eng

View full text Add to dashboard Cite

In medicine field, dynamic investigation of aorta artery has received attention due to its notable functions and significance upon performance of heart and individual health. Because, aortic injuries cause lethal occurrences having numerous mortality rates. Therefore, more probes, in particular, dynamic response of aorta arteries conveying blood flow containing pharmaceutical nanoparticles is essential. In present research, we attempt to model biomechanically the dynamic instability assessment of aorta arteries with atherosclerosis in tissue matrix conveying blood including pharmaceutical magnetic nanoparticles. Thus, according to classical cylindrical shell theory, the aorta arteries will be considered as elastic cylindrical vessels and symmetric lipid tissue is utilized in order to model atherosclerosis in the artery. Applying magnetic field to nanoparticles results in attraction of lipid tissue in artery. Moreover, the nature of blood flow is regarded non‐Newtonian based on Casson, Carreau, and power law models. Using Hamilton's principle, the motion equations are derived and based on differential quadrature method, the dynamic instability region of aorta artery is obtained. The influences of different variables such as magnetic field, magnetic nanoparticle's volume percent, combined effects of the tissue, lipid's height and length, and non‐Newtonian models upon dynamic behavior of aorta artery are investigated. According to the results, increase in lipid's height leads to increase in resonance frequency of aorta arteries.

show abstract

\frac{d^{n} F ((),, x_{i}, θ_{j})}{{italicdx}^{n}} goodbreak= \sum_{k = 1}^{N_{x}} A_{ik}^{(n)} F ((),, x_{k}, θ_{j}) n goodbreak= 1, \dots, N_{x} goodbreak- 1,

\frac{d^{m} F ((),, x_{i}, θ_{j})}{d θ^{m}} goodbreak= \sum_{l = 1}^{N_{θ}} B_{jl}^{(m)} F ((),, x_{i}, θ_{l}) m goodbreak= 1, \dots, N_{θ} goodbreak- 1,

\frac{d^{n + m} F ((),, x_{i}, θ_{j})}{{dx}^{n} d θ^{m}} goodbreak= \sum_{k = 1}^{N_{x}} \sum_{l = 1}^{N_{θ}} A_{ik}^{(n)} B_{jl}^{(m)} F ((),, x_{k}, θ_{l}),

in which

A_{ik}^{(n)}

as well as

B_{jl}^{(m)}

define weighting coefficients and are expressed as

A_{}

…”

Section: Solving Proceduresmentioning

confidence: 99%

The effect of pharmaceutical nanoparticles and atherosclerosis in aorta artery on the instable blood velocity based on numerical method

Motaghedifar

Fakhar

Tabatabaei

et al. 2022

Numer Methods Biomed Eng

View full text Add to dashboard Cite

show abstract

“…Advanced composite materials possess the advantages of high specific strength and modulus. [1,2] Thus, they are ideal materials for modern aerospace applications, such as airplanes, rockets, satellites, and spacecraft. The designability of composite materials provides a broad space for further improvements to their mechanical properties and structural optimization.…”

Section: Introductionmentioning

confidence: 99%

Buckling performance of co‐cured and stiffened composite structure with embedded multilayer damping membranes

et al. 2022

View full text Add to dashboard Cite

This research aims to explore the buckling performance of a co‐cured and stiffened composite structure with embedded multilayer damping membranes (CSCSEMDM) under static load. A buckling model of this structure is established theoretically by using the principle of minimum potential energy and first‐order shear deformation theory. Then, the governing equation of the structure is obtained. The critical buckling load of the structure is solved, and the finite element method is used to verify the correctness of the theoretical model and theoretical methods. Finally, the effects of various parameters on the critical buckling load are discussed on the basis of the validated model.

show abstract

“…Because of its advantageous features, such as high damping capacity, high specific strength, and high specific rigidity, composite sandwich structures constituted by two hard face layers and a soft core have been widely used in rail transport, aerospace applications, and other industries. [1][2][3] Therefore, the study of free vibration and damping property of circular composite sandwich cylindrical shells (CCSCS) has important research value.…”

Section: Introductionmentioning

confidence: 99%

Vibration characteristics of circular composite sandwich cylindrical shells with soft core

Dong

Yin

et al. 2022

Polymer Composites

View full text Add to dashboard Cite

In this article, in order to obtain better vibration characteristics of circular composite sandwich cylindrical shells (CCSCS), the free vibration and damping property of CCSCS has been performed with parameter analysis. First, the equations of motion of CCSCS are deduced by adopting a displacement continuous piece-wise model based on Hamilton's principle and first order shear theory, in which shear strain and rotary inertias of all layers are considered. Second, the exact Navier method is adopted to obtain the solutions of these vibration equations and is authenticated by comparison with the results of open literatures. Finally, the change rule of free vibration and damping property versus thickness, shear parameter, and some structure parameters ratios are presented graphically, then a series of valuable conclusion are proposed to make CCSCS obtain higher rigidity and damping property.

show abstract

Optimization of dynamic properties for laminated multiphase nanocomposite sandwich conical shell in thermal and magnetic conditions

Cited by 46 publications

References 42 publications

The effect of pharmaceutical nanoparticles and atherosclerosis in aorta artery on the instable blood velocity based on numerical method

The effect of pharmaceutical nanoparticles and atherosclerosis in aorta artery on the instable blood velocity based on numerical method

Buckling performance of co‐cured and stiffened composite structure with embedded multilayer damping membranes

Vibration characteristics of circular composite sandwich cylindrical shells with soft core

Contact Info

Product

Resources

About