Free Vibration Response of FG Porous Joined Hemispherical–Cylindrical–Hemispherical Shell Vessels Reinforced by Graphene Platelet DOI
Danli Zhang, Yong Wang, Li Li

и другие.

International Journal of Structural Stability and Dynamics, Год журнала: 2022, Номер 23(03)

Опубликована: Июль 26, 2022

In this research, the natural frequency behavior of functionally graded (FG) porous joined hemispherical–cylindrical–hemispherical shell vessels reinforced by graphene platelet (GPLs) has been studied for first time. Three various types porosity distribution are assumed through thickness direction vessel. two patterns, a pattern porosities in metal matrix is symmetric and other one uniform. Besides, five GPL patterns dispersing GPLs matrix. Extended role mixture Tsai-Halpin used to determine mass density Young’s modulus elasticity structure, respectively. By employing 3D theory, Hamilton’s Principal FEM conjunction with Rayleigh–Ritz method, governing equations motion vessel obtained frequencies extracted. The impact factors such as coefficient porosity, several along different distributions weight fraction nanofillers on FG reported

Язык: Английский

The effects of nano-additives on the mechanical, impact, vibration, and buckling/post-buckling properties of composites: A review DOI Creative Commons
L. Shan,

C.Y. Tan,

Xing Shen

и другие.

Journal of Materials Research and Technology, Год журнала: 2023, Номер 24, С. 7570 - 7598

Опубликована: Май 1, 2023

This study presents a review of the effect nano-additives in improving mechanical properties composites. Nano-additives added to composites, also termed nanocomposites, have promising applications aerospace, medical, biomedical, automotive, and military. The nanoparticles alter either surface, bulk, or both, depending upon process, dramatically change thermal conductivity, tensile strength, flexural fatigue impact resistance, vibration buckling, post-buckling, surface modification, application machine learning as well optimization methods nanocomposite materials. Such transformations composite materials are extensively studied by researchers positive implications successfully deployed various applications. Interestingly, recent findings revealed that weak chemical bonding between fiber matrix phase is main reason for delamination, however, addition nanoparticles, chances delamination reduced even under excessive loading. Graphene multi-walled carbon nanotubes (MWCNTs) most excessively reported nanomaterials enhancing behavior energy absorption capacity, decreasing adverse effects due porosity within structure. Also, techniques showed be way further improve while reducing total cost fabrication process predicting providing optimum characteristics with acceptable accuracy compared realistic conditions.

Язык: Английский

Процитировано

53

Natural frequency analysis of imperfect GNPRN conical shell, cylindrical shell, and annular plate structures resting on Winkler-Pasternak Foundations under arbitrary boundary conditions DOI
Emad Sobhani, Mehmet Avcar

Engineering Analysis with Boundary Elements, Год журнала: 2022, Номер 144, С. 145 - 164

Опубликована: Авг. 20, 2022

Язык: Английский

Процитировано

56

Circumferential vibration analysis of nano-porous-sandwich assembled spherical-cylindrical-conical shells under elastic boundary conditions DOI
Emad Sobhani, Amir R. Masoodi, Amir Reza Ahmadi-Pari

и другие.

Engineering Structures, Год журнала: 2022, Номер 273, С. 115094 - 115094

Опубликована: Окт. 18, 2022

Язык: Английский

Процитировано

36

Transient Thermal Stresses in FG Porous Rotating Truncated Cones Reinforced by Graphene Platelets DOI Creative Commons
Masoud Babaei,

Faraz Kiarasi,

Kamran Asemi

и другие.

Applied Sciences, Год журнала: 2022, Номер 12(8), С. 3932 - 3932

Опубликована: Апрель 13, 2022

The present work studies an axisymmetric rotating truncated cone made of functionally graded (FG) porous materials reinforced by graphene platelets (GPLs) under a thermal loading. problem is tackled theoretically based on classical linear thermoelasticity approach. consists layered material with uniform or non-uniform dispersion GPLs in metal matrix open-cell internal pores, whose effective properties are determined according to the extended rule mixture and modified Halpin–Tsai model. A finite element method (FEM) Rayleigh–Ritz energy formulation Crank–Nicolson algorithm here applied solve both time space domain. thermo-mechanical response checked for different porosity distributions (uniform graded), together types GPL patterns across thickness. parametric study performed analyze effect coefficients, weight fractions GPL, semi-vertex angles cone, circular velocity, thermal, kinematic, stress structural member.

Язык: Английский

Процитировано

35

On the vibrational analysis of combined paraboloidal-conical air vehicle segment shell-type structures DOI
Emad Sobhani

Aerospace Science and Technology, Год журнала: 2022, Номер 129, С. 107823 - 107823

Опубликована: Авг. 22, 2022

Язык: Английский

Процитировано

34

On vibrational-based numerical simulation of a jet engine cowl shell-like structure DOI
Emad Sobhani, Amir R. Masoodi, Ömer Cívalek

и другие.

Mechanics of Advanced Materials and Structures, Год журнала: 2022, Номер 30(19), С. 4016 - 4027

Опубликована: Июнь 14, 2022

The present research proposes an applicable and impressive analytical model of Aircraft Engine Cowl (AEC) due to auspicate its frequency parameter. For the first time, authors configured structure AEC by joining two well-known shapes shell, including elliptical conical. This procedure is implemented obtaining governing motion organization differential equations affiliated with Joined Elliptical-Conical Shells (JECS) in line first-order shear deformation theory (FSDT) General Shell Formulation (GSF). Moreover, Functionally Graded Materials (FGMs) various spreading forms along structure’s thickness are used enhance dynamic performance AEC. It worth mentioning that recognized Rule Mixture (RM) engaged for achieving equivalent mechanical characteristics FGM. Finally, a semi-analytical Generalized Differential Quadrature (GDQ) hired extract resulting system access free vibration responses diverse Boundary Conditions (BCs). interesting numerical done inspect remnants geometric material features on oscillation demeanor structures. will be verified projected can helpful AEC’s analysis extendable other types studies predict structure's static treatment.

Язык: Английский

Процитировано

33

On the frequencies of graphene nanoplatelet agglomerated nanocomposite paired paraboloidal-cylindrical shells under arbitrary boundary conditions DOI
Emad Sobhani, Amir R. Masoodi

Aerospace Science and Technology, Год журнала: 2022, Номер 128, С. 107782 - 107782

Опубликована: Июль 28, 2022

Язык: Английский

Процитировано

33

Free vibration of porous graphene oxide powder nano-composites assembled paraboloidal-cylindrical shells DOI
Emad Sobhani, Amir R. Masoodi, Rossana Dimitri

и другие.

Composite Structures, Год журнала: 2022, Номер 304, С. 116431 - 116431

Опубликована: Окт. 31, 2022

Язык: Английский

Процитировано

33

Vibrational characteristics of fastening of a spherical shell with a coupled conical-conical shells strengthened with nanocomposite sandwiches contained agglomerated CNT face layers and GNP core under spring boundary conditions DOI
Emad Sobhani

Engineering Analysis with Boundary Elements, Год журнала: 2022, Номер 146, С. 362 - 387

Опубликована: Ноя. 8, 2022

Язык: Английский

Процитировано

30

State-of-the-Art Review of Computational Static and Dynamic Behaviors of Small-Scaled Functionally Graded Multilayer Shallow Arch Structures from Design to Analysis DOI

Dogus Hurdoganoglu,

Babak Safaei, Saeid Sahmani

и другие.

Archives of Computational Methods in Engineering, Год журнала: 2023, Номер 31(1), С. 389 - 453

Опубликована: Авг. 14, 2023

Язык: Английский

Процитировано

20