Journal ArticleDOI
A new numerical approach and visco-refined zigzag theory for blast analysis of auxetic honeycomb plates integrated by multiphase nanocomposite facesheets in hygrothermal environment
TLDR
The results show that the magnetic field to the facesheets can be considered as effective parameters to control the dynamic deflection of the structure and lead to increase of 24% in the dynamic displacement of system.Abstract:
The current work suggests a mathematical model for the dynamic response of sandwich plates subjected to a blast load using a numerical method. The sandwich structure is made from an auxetic honeycomb core layer integrated by multiphase nanocomposite facesheets. The facesheets are composed of polymer–carbon nanotube (CNT)–fiber where the equivalent material properties of the multiphase nanocomposite layers are obtained using fiber micromechanics and Halpin–Tsai equations in hierarchy. The top and bottom layers are subjected to magnetic field and the material properties of them are assumed temperature and moisture dependent. The Kelvin–Voigt model is employed to consider the viscoelastic properties of the structure. The sandwich structure is rested on a viscoelastic foundation which is modeled by orthotropic visco-Pasternak medium. Based on refined zigzag theory (RZT), energy method and Hamilton’s principle, the motion equations are derived. A new numerical method, namely differential cubature method (DCM) in conjunction with Newmark method is utilized for obtaining the dynamic deflection of the structure for different boundary conditions. The effects of various parameters such as blast load, viscoelastic foundation, structural damping, magnetic field, volume fraction of CNTs, temperature and moisture changes, geometrical parameters of honeycomb layer and sandwich plate are considered on the dynamic deflection of the structure. The results show that the magnetic field to the facesheets can be considered as effective parameters to control the dynamic deflection. In addition, hygrothermal condition leads to increase of 24% in the dynamic displacement of system.read more
Citations
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Journal ArticleDOI
Application of exact continuum size-dependent theory for stability and frequency analysis of a curved cantilevered microtubule by considering viscoelastic properties
TL;DR: The stability analysis of cantilevered curved microtubules in axons regarding various size elements and using the generalized differential quadrature method for solving equations is reported, finding physical neighboring situations in a cell will be prominent in microtubule’ dynamic stability responses, such as membrane and cell-matrix.
Journal ArticleDOI
Large amplitude vibration of sandwich plates with functionally graded auxetic 3D lattice core
TL;DR: In this paper, a full-scale modeling and nonlinear FEA is presented for large amplitude vibration of sandwich plates with functionally graded (FG) auxetic 3D lattice core.
Journal ArticleDOI
Bending, free vibration and buckling of functionally graded carbon nanotube-reinforced sandwich plates, using the extended Refined Zigzag Theory
M. Di Sciuva,Matteo Sorrenti +1 more
TL;DR: In this paper, an application of the extended refined Zigzag theory (eRZT) in conjunction with the Ritz method to the analysis of bending, free vibration and buckling of functionally graded carbon nanotube-reinforced (FG-CNTR) sandwich plates is presented.
Journal ArticleDOI
Dynamic stability control of viscoelastic nanocomposite piezoelectric sandwich beams resting on Kerr foundation based on exponential piezoelasticity theory
M.S.H. Al-Furjan,M.S.H. Al-Furjan,Ahmad Farrokhian,Behrooz Keshtegar,Reza Kolahchi,Nguyen-Thoi Trung +5 more
TL;DR: In this paper, the dynamic stability of an embedded Aluminum beam incorporated by nanocomposite piezoelectric layers was studied using differential quadrature method (DQM) and Bolotin method.
Journal ArticleDOI
Nonlinear dynamic response of sandwich plates with functionally graded auxetic 3D lattice core
Chong Li,Hui-Shen Shen,Hai Wang +2 more
TL;DR: In this paper, a full-scale modeling and nonlinear dynamic analysis of sandwich plates with auxetic 3D lattice core was presented, which was further designed to possess three functionally graded (FG) configurations through the plate thickness direction for the first time.
References
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Non-linear vibration analysis of a functionally graded timoshenko beam under action of a moving harmonic load
TL;DR: In this article, the effects of large deflection, material distribution, velocity of the moving load and excitation frequency on the beam displacements, bending moments and stresses have been examined in detail.
Journal ArticleDOI
A consistent refinement of first-order shear deformation theory for laminated composite and sandwich plates using improved zigzag kinematics
TL;DR: In this article, a refined zigzag theory is presented for laminated-composite and sandwich plates that includes the kinematics of first-order shear-deformation theory as its baseline.
Journal ArticleDOI
Thermal and mechanical stability of functionally graded carbon nanotubes (FG CNT)-reinforced composite truncated conical shells surrounded by the elastic foundations
TL;DR: In this paper, the thermal and mechanical stability of a functionally graded composite truncated conical shell reinforced by carbon nanotube fibers and surrounded by the elastic foundations is studied, and the equilibrium and linearized stability equations for the shells are derived based on the classical shell theory.
Journal ArticleDOI
Nonlinear dynamic response and vibration of sandwich composite plates with negative Poisson’s ratio in auxetic honeycombs:
TL;DR: Auxetic cellular solids in the forms of honeycombs under blast load have great potential in a diverse range of applications, including core material in sandwich plates composite components.
Journal ArticleDOI
Dynamic response and vibration of composite double curved shallow shells with negative Poisson's ratio in auxetic honeycombs core layer on elastic foundations subjected to blast and damping loads
Nguyen Dinh Duc,Nguyen Dinh Duc,Kim Seung-Eock,Pham Hong Cong,Pham Hong Cong,Nguyen Tuan Anh,Nguyen Dinh Khoa +6 more
TL;DR: In this article, the authors investigated dynamic response and vibration of composite double curved shallow shells with negative Poisson's ratios in auxetic honeycombs core layer on elastic foundations subjected to blast and damping loads using analytical solution.