Showing papers in "International Journal of Mechanical Sciences in 2011"

TL;DR: In this article, a hyperbolic shear deformation theory for the buckling and free vibration analysis of thick functionally graded sandwich plates is presented. But unlike the above works, the theory presented gives rise to only four governing equations, and the number of unknown functions involved is only four.

TL;DR: In this paper, an exact closed-form procedure is presented for free vibration analysis of moderately thick rectangular plates having two opposite edges simply supported (i.e. Lvy-type rectangular plates) based on the Reissner-Mindlin plate theory.

TL;DR: In this paper, the generalized differential quadrature (GDQ) method is applied to study the dynamic behavior of functionally graded materials (FGMs) and laminated doubly curved shells and panels of revolution with a free-form meridian.

TL;DR: In this article, an improved third order shear deformation theory is employed to investigate thermal buckling and vibration of the functionally graded beams, and a power law distribution is used to describe the variation of volume fraction of material compositions.

TL;DR: In this paper, the free vibration response of double-walled carbon nanotubes (DWCNTs) is investigated and the Rayleigh-ritz technique is applied to consider different sets of boundary conditions.

TL;DR: In this article, a set of mechanism-based unified creep ageing constitutive equations has been formulated, which models creep induced evolution of precipitates, dislocation hardening, solid solution hardening and age-precipitation hardening.

TL;DR: In this article, the authors evaluated the performance of palm oil when used as a lubricant in cold work such as the forward plane strain extrusion process, and the results showed that palm oil has satisfactory lubrication performances, as compared to paraffinic mineral oil, and has advantages in reducing the extrusion load.

TL;DR: In this article, the heat and mass transfer characteristics of the magnetohydrodynamic (MHD) viscous flow over a permeable stretching surface is solved analytically under both the hydrodynamic and thermal slip conditions.

TL;DR: In this article, an overdeterministic method was used for calculating the Notch Stress Intensity Factor (NSIFs) as well as the coefficients of the higher order terms for structures containing sharp notches.

TL;DR: In this article, the authors investigated the forced dynamics of an axially moving viscoelastic beam and derived the governing equation of motion via Newton's second law of motion and constitutive relations.

TL;DR: In this article, a mathematical model of the steady forming condition for RARR is developed based on the constant growth velocity condition (CGVC) of the ring, which is a design objective of the process variables.

TL;DR: In this article, a new method, which takes compensation direction into account based on displacement adjustment, has been developed, which considers the fact that large rotation and displacement would occur during springback, which is more common for automotive panel stamping.

TL;DR: In this paper, a computer-aided design method incorporating Kirkaldy and Venugopalan type phase transformation models has been implemented following a thermo-mechanical coupled finite element analysis to predict the mechanical properties of hot-stamped parts made with a boron-modified steel.

TL;DR: In this paper, the authors present a predictive model of flatness defects, which appear during rolling of thin plates, the origin of which is the roll stack thermo-elastic deformation.

TL;DR: In this paper, a study of three-dimensional free vibration analysis of thick circular and annular isotropic and functionally graded (FG) plates with variable thickness along the radial direction, resting on Pasternak foundation is described.

TL;DR: In this article, an active vibration control to suppress structural vibration of the smart hull structure was investigated based on optimized actuator configurations using anisotropic piezoelectric composite actuator, Macro-Fiber Composite (MFC), was used for the vibration control.

TL;DR: In this paper, the Integral Mode Mistuning (IMM) technique was proposed for the analysis of bladed disk dynamics, which was originally developed exclusively for the use of the blade frequency mistuning pattern.

TL;DR: In this article, a modified Muskhelishvili complex variable method is used to calculate the stress concentration around a hole in an infinite plate that is subjected to a uniform load at infinity.

TL;DR: In this paper, the authors study the link between local parameters (chip temperature, sliding friction coefficient, tool geometry) and overall friction characteristics depicting the global response of the tool-chip interface.

TL;DR: In this paper, a mean-line model is presented to predict the performance parameters of a turbocharger turbine under steady state conditions, and the results of the model simulation showed that the performance can be predicted with excellent accuracy for different turbine speeds and vane angles.

TL;DR: In this article, the authors apply the famous Ritz method to analyze the free vibrations of rectangular plates with internal cracks or slits, and propose a new set of admissible functions that are able to properly describe the stress singularity behaviors near the tips of the crack and meet the discontinuous behaviors of the exact solutions across the crack.

TL;DR: In this paper, an elasto-plastic constitutive model based on one-surface plasticity was presented, which can capture the Bauschinger effect, transient behavior, permanent softening, and yield anisotropy.

TL;DR: In this article, a modified version of the traditional tuned liquid column damper (TLCD) absorber is proposed as a passive vibration control device for structures vibrating at low frequencies.

TL;DR: In this article, the trend of SIDR and its affecting factors through a turbulent swirl decay pipe flow have been investigated and correlations have been proposed in order to improve the predictions of swirl intensity decay rate at upstream regions as well as those with high swirl intensity.

TL;DR: In this article, the mechanical behavior of mild and dual phase steel sheets is investigated at room temperature in quasi-static conditions under different strain paths: uniaxial tension, simple shear and balanced biaxonial tension.

TL;DR: In this article, the influence on coupling vibrations among shaft-torsion and blade-bending coupling vibrations of a multi-disk rotor system was investigated analytically for one-to three-disk cases as examples.

TL;DR: In this paper, a new methodology is proposed to obtain the forming limit diagram (FLD) of sheet materials by utilizing routinely obtained experimental punch load versus displacement traces from hemispherical punch stretching experiments and by analyzing strain history of the test samples from finite element simulations of the experiments.

TL;DR: In this article, the undamped dynamic response of step-voltage driven parallel-plates, cantilever, and fixed-fixed type electromechanical switches is numerically investigated.

TL;DR: In this article, the Rayleigh-Ritz method was used for analysis of symmetrically laminated rectangular plates with parabolic distributed in-plane compressive loadings along two opposite edges.

TL;DR: In this article, the parametric equations of the plane curves determining the equilibrium shapes that a uniform inextensible elastic ring or tube could take subject to a uniform hydrostatic pressure are presented in an explicit analytic form.