This is the first research on the vibrational analysis of functionally graded graphene platelets reinforced composite (FG-GPLRC) viscoelastic annular plate within the framework of higher order shea...

Vibrational characteristics of a FG-GPLRC viscoelastic thick annular plate using fourth-order Runge-Kutta and GDQ methods

Static analysis of non-uniform 2D functionally graded auxetic-porous circular plates interacting with the gradient elastic foundations involving friction force

Three-point bending behaviors of the foam-filled CFRP X-core sandwich panel: Experimental investigation and analytical modelling

Bending response and energy absorption of sandwich beams with novel auxetic honeycomb core

In this paper, static and free vibration analysis of a sandwich cylindrical shell is performed using theory of elasticity formulation. The core layer is made of functionally graded material with material properties varying along the thickness direction according to a simple power law. For the case of simply supported boundary conditions, equations of motion and equilibrium equations are solved analytically by applying a state-space technique along the radial direction and Fourier series expansion along the axial and circumferential direction. When boundary conditions are not simply supported, a semi-analytically solution is performed by using the differential quadrature method along the axial direction. The present approach is validated by comparing the obtained numerical results with those published in the available literature. Moreover, effects of boundary conditions, graded direction, mid-radius to thickness and length to mid-radius ratios on bending and vibration behavior are considered.

Static and free vibration analysis of sandwich cylindrical shell based on theory of elasticity and using DQM

Experimental and numerical analysis of novel multi-layer sandwich panels under three point bending load

Based on 3D elasticity theory, static analysis of viscoelastic cylindrical panel made up of functionally graded material (FGM) and subjected to transverse uniform pressure is performed. Analytical solution presented, using state space method and Fourier expansion for simply supported edges, and semi-analytical approach by state space differential quadrature method (DQM) used for other boundary conditions. Field equations are solved in Laplace domain and results are transferred back to time domain numerically by Laplace inverse technique. In this investigation relaxation modulus of panel is assumed to obey Prony series form and varies in accordance to power law along the radial direction due to inhomogeneous property of FGM across the thickness. Numerical results for elastic cylindrical panel are compared with published results to validate exactness and accuracy of the present approach. In numerical illustration displacement and stress fields are studied. Moreover, effect of relaxation time constant, boundary conditions, mid-radius to thickness ratio and power law index on bending behavior of viscoelastic cylindrical panel are investigated.

Three dimensional static analysis of viscoelastic FGM cylindrical panel using state space differential quadrature method

Three dimensional thermoviscoelastic analysis of a simply supported FGM cylindrical panel

Mechanical behavior of a viscoelastic cylindrical panel with various edge boundary conditions, made up of functionally graded material (FGM) and subjected to thermal or mechanical load is investigated. For cases of simply supported boundary conditions, analytical solution is presented through Fourier series expansion along the axial and circumferential coordinates as well as state space method along the radial coordinate. For nonsimply supported conditions, semi-analytical solution is performed using differential quadrature method instead of Fourier series solution. Governing differential equations are transformed to Laplace transform domain and using inverse Laplace transform, obtained solutions are converted to time domain. In the present work, relaxation modulus of FGM is supposed to be according to the Prony series with power law variations along the radial direction. Numerical comparison was made with the available published results to assess the validity of present technique. Effect of relax...

Hossein Norouzi

Papers

Experimental and numerical analysis of novel multi-layer sandwich panels under three point bending load

Three dimensional static analysis of viscoelastic FGM cylindrical panel using state space differential quadrature method

Three dimensional thermoviscoelastic analysis of a simply supported FGM cylindrical panel

Three-dimensional thermoviscoelastic analysis of a FGM cylindrical panel using state space differential quadrature method