Volume 8, Issue 3
مرور بر اساس
ارسال های اخیر

Vibration Analysis of Orthotropic Triangular Nanoplates Using Nonlocal Elasticity Theory and Galerkin Method
(Islamic Azad University  Arak Branch, 20160901)In this article, classical plate theory (CPT) is reformulated using the nonlocal differential constitutive relations of Eringen to develop an equivalent continuum model for orthotropic triangular nanoplates. The equations ...

Free Vibration Analysis of Variable Stiffness Composite Laminates with Flat and Folded Shapes
(Islamic Azad University  Arak Branch, 20160901)In this article, free vibration analysis of variable stiffness composite laminate (VSCL) plates with flat and folded shapes is studied. In order to consider the concept of variable stiffness, in each layer of these composite ...

Problem of Rayleigh Wave Propagation in Thermoelastic Diffusion
(Islamic Azad University  Arak Branch, 20160901)In this work, the problem of Rayleigh wave propagation is considered in the context of the theory of thermoelastic diffusion. The formulation is applied to a homogeneous isotropic thermoelastic half space with mass diffusion ...

Modal Testing and Finite Element Analysis of Crack Effects on Turbine Blades
(Islamic Azad University  Arak Branch, 20160901)The study of vibration response of a turbine blade helps to detect the crack presence in the blade which alters its dynamic characteristics. The change is characterized by changes in the modal parameters associated with ...

Generalized Thermoelastic Problem of a Thick Circular Plate Subjected to Axisymmetric Heat Supply
(Islamic Azad University  Arak Branch, 20160901)The present work is aimed at analyzing the thermoelastic disturbances in a circular plate of finite thickness and infinite extent subjected to constant initial temperature and axisymmetric heat supply. Integral transform ...

Deformation Due to Inclined Loads in Thermoporoelastic Half Space
(Islamic Azad University  Arak Branch, 20160901)The present investigation is concerned with the deformation of thermoporoelastic half space with incompressible fluid as a result of inclined load of arbitrary orientation. The inclined load is assumed to be linear combination ...

Nonlocal Bending Analysis of Bilayer Annular/Circular Nano Plates Based on First Order Shear Deformation Theory
(Islamic Azad University  Arak Branch, 20160901)In this paper, nonlinear bending analysis of bilayer orthotropic annular/circular graphene sheets is studied based on the nonlocal elasticity theory. The equilibrium equations are derived in terms of generalized displacements ...

Analytical and Numerical Modelling of the Axisymmetric Bending of Circular Sandwich Plates with the Nonlinear Elastic Core Material
(Islamic Azad University  Arak Branch, 20160901)Herein paper compares the analytical model with the FEM based numerical model of the axisymmetric bending of circular sandwich plates. Also, the paper describes equations of the circular symmetrical sandwich plates bending ...

Edge Crack Studies in Rotating FGM Disks
(Islamic Azad University  Arak Branch, 20160901)This article focused on the stress analysis of an edge crack in a thin hallow rotating functionally graded material (FGM) disk. The disk is assumed to be isotropic with exponentially varying elastic modulus in the radial ...

Exact Implementation of Multiple Initial Conditions in the DQ Solution of HigherOrder ODEs
(Islamic Azad University  Arak Branch, 20160901)The differential quadrature method (DQM) is one of the most elegant and useful approximate methods for solving initial and/or boundary value problems. It is easy to use and also straightforward to implement. However, the ...

An Investigation into Resonant Frequency of Triangular VShaped Cantilever Piezoelectric Vibration Energy Harvester
(Islamic Azad University  Arak Branch, 20160901)Power supply is a bottleneck problem of wireless microsensors, especially where the replacement of batteries is impossible or inconvenient. Now piezoelectric material is being used to harvest vibration energy for ...

Free Vibration Analysis of Microtubules as Orthotropic Elastic Shells Using Stress and Strain Gradient Elasticity Theory
(Islamic Azad University  Arak Branch, 20160901)In this paper, vibration of the protein microtubule, one of the most important intracellular elements serving as one of the common components among nanotechnology, biotechnology and mechanics, is investigated using stress ...

Effect of Carbon Nanotube Geometries on Mechanical Properties of Nanocomposite Via Nanoscale Representative Volume Element
(Islamic Azad University  Arak Branch, 20160901)Predicting the effective elastic properties of carbon nanotubereinforced nanocomposites is of great interest to many structural designers and engineers for improving material and configuration design in recent years. In ...

Dynamic Analysis of MultiDirectional Functionally Graded Panels and Comparative Modeling by ANN
(Islamic Azad University  Arak Branch, 20160901)In this paper dynamic analysis of multidirectional functionally graded panel is studied using a semianalytical numerical method entitled the statespace based differential method (SSDQM) and comparative behavior modeling ...

Thermoelastic Analysis of Rotating Thick Truncated Conical Shells Subjected to NonUniform Pressure
(Islamic Azad University  Arak Branch, 20160901)In the present work, a study of thermoelastic analysis of a rotating thick truncated conical shell subjected to the temperature gradient and nonuniform internal pressure is carried out. The formulation is based on firstorder ...

Response of Two Temperatures on Wave Propagation in Micropolar Thermoelastic Materials with One Relaxation Time Bordered with Layers or Half Spaces of Inviscid Liquid
(Islamic Azad University  Arak Branch, 20160901)The present study is concerned with the propagation of Lamb waves in a homogeneous isotropic thermoelastic micropolar solid with two temperatures bordered with layers or half spaces of inviscid liquid subjected to stress ...