Showing papers in "International Journal of Mechanical Sciences in 2013"

TL;DR: In this paper, the compressive response of lattice structures based on two simple architectures, namely, a body-centred cubic structure (BCC) and a similar structure with vertical pillars, were used to model the structures under quasi-static compressive loads.

TL;DR: In this paper, the authors investigated the mechanical static compression behavior of 316L stainless steel micro-lattice materials manufactured using selective laser melting method and found that the stiffness and strength of these materials are quite close to experiments.

TL;DR: In this article, a vibration isolation system with a negative stiffness structure (NSS) for driver seats in low frequency vibration conditions is presented, for which the dimensionless nonlinear stiffness of the proposed system ranges from zero to one and the range of the displacement of the isolation equipment (mass) is the maximum without exceeding a desired value of stiffness.

TL;DR: In this article, asymptotic homogenization (AH) is used as a benchmark to test the accuracy of alternative schemes of homogenisation applied to lattice materials, and the results on the effective elastic moduli and yield strength of six lattice topologies for the whole range of relative density.

TL;DR: In this paper, the authors investigated the structure of the solutions for the MHD flow and heat transfer of an electrically conducting, viscoelastic fluid past a stretching vertical surface in a porous medium, by taking into account the diffusion thermo (Dufour) and thermal diffusion (Soret) effects.

TL;DR: In this paper, a unified analytical method based on the first-order shear deformation theory is developed for the vibration analysis of moderately thick composite laminated cylindrical shells subjected to general boundary conditions and arbitrary intermediate ring supports, and various lamination schemes.

TL;DR: In this paper, a higher order shear and normal deformation theory is developed to simulate the thermoelastic bending of functionally graded material (FGM ) sandwich plates, which is relevant to aerospace, chemical process and nuclear engineering structures which may be subjected to intense thermal loads.

TL;DR: In this article, thermal buckling and postbuckling analysis of Functionally Graded Material (FGM) Timoshenko beams resting on a non-linear elastic foundation are examined.

TL;DR: In this article, the authors considered the problem of a half-space formed of a material with variable thermal conductivity and applied the theory of fractional order theory of thermoelasticity to the problem.

TL;DR: In this paper, a general approach is presented for the vibration studies of rotating cylindrical shells having arbitrary edges, which is based on the Sanders' shell theory and the effects of centrifugal and Coriolis forces as well as initial hoop tension due to rotating are all taken into account by taking the characteristic orthogonal polynomial series as the admissible functions, the Rayleigh-Ritz method is employed to derive the frequency equations of rotating cylinders with classical homogeneous boundary conditions.

TL;DR: In this paper, the model of a vibro-impact capsule system is studied to provide a fundamental understanding of its dynamics for potential medical and engineering applications, and a trade-off between the best progression and the energy consumption is required to optimize the system behaviour.

TL;DR: In this article, the authors proposed a hybrid approach to detect locations and severities of damages on the surface of conical shells using wavelet transform to decompose a curvature mode shape and a support vector machine (SVM) to determine damage severities.

TL;DR: In this paper, the free vibration response of laminated composite and sandwich plates is analyzed using the principle of virtual work for the dynamic problem and a Navier type and finite element solutions are proposed to obtain the free vibrational response.

TL;DR: In this paper, an analytical approach is presented to investigate the nonlinear static and dynamic buckling of imperfect eccentrically stiffened functionally graded thin circular cylindrical shells subjected to axial compression.

TL;DR: In this article, the effect of the size of windows on tubes' collapse characteristics was investigated by using a finite element analysis, and three collapse modes, the symmetric, extensional and diamond modes, were distinguished.

TL;DR: In this paper, the free vibration characteristics of conical-cylindrical-spherical shell combinations with ring stiffeners are investigated by using a modified variational method, where the displacement fields of each shell segment are expressed as a product of orthogonal polynomials along the meridional direction and Fourier series along the circumferential direction.

TL;DR: In this article, the authors explored the use of solid continuum finite elements and shell finite elements in the modelling of the nonlinear plastic buckling behavior of cylindrical metal tubes and shells under global bending.

TL;DR: In this article, a simple refined shear deformation theory is proposed for bending, buckling, and vibration of thick plates resting on elastic foundation, which accounts for parabolic distribution of transverse shear stress, and satisfies the free transverse hear stress conditions on the top and bottom surfaces of the plate without using shear correction factor.

TL;DR: In this paper, a metaheuristic algorithm called Harmony Search (HS) was employed to find more feasible results for tuning tuned mass dampers (TMD) in SDOF structures with various periods.

TL;DR: In this article, a simple and efficient approach based on extended finite element method (XFEM) has been presented to simulate three-dimensional fatigue crack growth simulations, in which a crack front has been divided into many piecewise curve crack segments to avoid an iterative solution.

TL;DR: In this article, the free vibrations of cylindrical shells with non-uniform elastic boundary constraints were investigated using improved Fourier series method, in which each of three displacements of the shell is represented by a Fourier-series supplemented by several terms introduced to ensure and accelerate the convergence of the series expansions.

TL;DR: In this article, the dynamics of the vibro-impact system which consists of a capsule main body interacting with a harmonically driven internal mass in various environments is studied by four different friction models which take into account Coulomb friction, viscous damping, Stribeck effect, pre-sliding, and frictional memory.

TL;DR: In this paper, a nonlocal Rayleigh, Timoshenko, and higher-order beam theories were used to analyze the flexural frequencies of double-walled carbon nanotubes (DWCNTs).

TL;DR: Molinari et al. as mentioned in this paper focused on the numerical analysis of adiabatic shear banding in orthogonal cutting of Ti6Al4V alloy, depending on the competition of thermal softening and strain and strain rate hardening.

TL;DR: In this article, a closed-form solution for buckling analysis of thick functionally graded plate resting on elastic foundation is presented using the third-order shear deformation theory, which is assumed that the plate rests on Pasternak foundation and its material properties vary through the plate thickness as a power function.

TL;DR: In this paper, a new concept based on the empirical mode decomposition (EMD) was proposed to choose an appropriate intrinsic mode function (IMF) for the subsequent envelope analysis.

TL;DR: In this article, the free bending vibration of rotating axially functionally graded (FG) Euler-Bernoulli tapered beams (ETB) with different boundary conditions are studied using Differential Transformation method (DTM) and differential quadrature element method of lowest order (DQEL).

TL;DR: In this paper, the authors proposed a damage identification approach in bridge structures under moving vehicular loads without knowledge of the vehicle properties and the time-histories of moving interaction forces.

TL;DR: In this article, a non-associated plane stress anisotropic constitutive model with mixed isotropic-kinematic hardening was proposed to predict accurate hardening in cyclic loading conditions.