Showing papers in "International Journal of Engineering Science in 2009"

TL;DR: In this article, the authors demonstrate the consequence of using different equivalent models to represent a lattice system consisting of mass-in-mass units and why negative mass is needed in the equivalent model.

TL;DR: In this paper, the static and dynamic problems of Bernoulli-Euler beams are solved analytically on the basis of strain gradient elasticity theory due to Lam et al.

TL;DR: In this paper, a new symplectic elasticity approach based on the conservative energy principle and constructed within a new semi-inverse space has been proposed, which is rigorously rational to facilitate analytical solutions which are not completely covered by the semiinverse counterparts.

TL;DR: In this article, the shear strength properties of unsaturated granular materials with capillary effects were investigated based on discrete element simulations and micromechanical calculations, and the results showed a nonlinear evolution of the cohesion with the water content.

TL;DR: Gurtin et al. as mentioned in this paper applied the Gurtin-Murdoch continuum model to analyze the elastic field of an isotropic elastic layer bonded to a rigid base, where the surface properties were characterized by the residual surface tension and surface Lame constants.

TL;DR: In this paper, the authors review two concepts that appear in the theory that governs the interaction between electric fields and deformable media, namely the "Maxwell stress" and the "total stress".

TL;DR: In this article, the authors study the interaction between the buildings of a city through a fully coupling structure-soil-structure model and compute the global response of the city.

TL;DR: In this paper, a finite-difference technique with staggered grid distribution is employed to solve the governing equations of viscous flow in the neighborhood of an overlapping constriction under laminar flow conditions with the motivation for modeling blood flow through a local occlusion of artery formed due to arterial disease.

TL;DR: Based on Sherief's generalized thermodiffusion theory with one relaxation time, the dynamic response of an infinite body with a cylindrical cavity whose surface suffers thermal shock is studied by using finite element method as mentioned in this paper.

TL;DR: In this paper, the interaction between a screw dislocation and an elliptical nano inhomogeneity embedded in an infinite matrix is investigated, and the Gurtin-Murdoch model is used to account for the interface stress effects of the nano-inhomogeneity.

TL;DR: In this paper, the authors used the discrete element method to explore the underlying mechanisms of non-coaxiality between the principal directions of stress and strain increment in granular materials with fixed strain increment directions.

TL;DR: In this paper, the authors analyzed the plastic response of a thin foil under bending using the phenomenological flow theory of strain gradient plasticity proposed by Fleck and Willis [N.A. Fleck, J.R. Willis, 2009].

TL;DR: In this article, a one-dimensional model of the two-temperature generalized magneto-thermoelasticity theory with one relaxation time in a perfect conducting medium is established.

TL;DR: In this paper, the authors developed a strain gradient theory based on decomposition of the state variables into energetic and dissipative components, and endowed the constitutive equations to have both energetic gradient length scales l en and l dis, respectively.

TL;DR: In this article, the overall mechanical response as well as strain and stress field statistics of an heterogeneous material made of two randomly distributed, linear elastic phases, are investigated numerically.

TL;DR: In this article, a thermodynamic derivation of the Maxwell-Cattaneo equation involving a material time, instead of a partial time, derivative of heat flux is presented, relying on an extended state space and a representation theory of Edelen.

TL;DR: In this paper, a simple but robust scale invariance argument was used to derive flow rules for macroscopic kinematic hardening plasticity from the configuration of single slip.

TL;DR: In this article, the generalized differential quadrature (GDQ) method was used to compute the transient response of laminated magnetostrictive plate under thermal vibration and center displacement with and without shear effect.

TL;DR: It is concluded that the experimental data can be used to determine parameters in a predetermined form of grading, but that comparative insensitivity to the exact form of the grading would make it difficult to distincguish experimentally between different models based on indentation experiments alone.

TL;DR: In this article, a model for the deformations of slightly compressible (or nearly incompressible) rubbers based solely on their experimentally observed response in compression tests is proposed.

TL;DR: In this article, an optimization of the excitation-measurement configuration is proposed for the characterization of damage in PZT-4 piezoelectric plates, from a numerical point of view.

TL;DR: In this paper, the effective elastic, dielectric, magnetic and magnetoelectric properties of a composite material with unidirectional cylindrical fiber periodically distributed in a square array are determined by means of the Asymptotic Homogenization Method.

TL;DR: In this paper, the governing equation of equilibrium of gradient elastic circular cylindrical thin shells under axial compressive forces is explicitly derived by appropriately combining the equations of equilibrium and the strain-displacement relations according to Donnell's theory and the stress-stain equations of a simple strain gradient elastic theory with just one constant (the internal length squared) in addition to the classical elastic moduli.

TL;DR: In this paper, it was shown that two velocities rather than one are required and, concomitantly, that additional driving forces must be added to each of the standard constitutive equations for the Fourier's-law heat flux q and viscous stress T in order to effect closure of the mass, momentum, and energy equations.

TL;DR: In this article, the authors studied the two-dimensional problem of electromagneto-thermoelasticity for a homogeneous isotropic perfectly conducting thick plate subjected to a time-dependent heat source.

TL;DR: In this paper, the authors proposed a solution based on the correspondence principle between elastic and piezoelectric problems, and the stiffness relations between applied load and resulting displacement are given in elementary functions.

TL;DR: Jiang et al. as discussed by the authors revisited and reformulated the Hall-Petch law in the case of nanocrystalline (NC) materials, following an incremental small strain scheme.

TL;DR: In this article, the authors extend the seminal work of Stokes concerning the flow due to a suddenly accelerated plate and an oscillating plate for the Navier-Stokes fluid, to a fluid with pressure dependent viscosity.

TL;DR: In this paper, the dispersion of acoustic or elastodynamic waves in elastic composites is studied using the homogenized model of the heterogeneous elastic continuum for prediction of the band gaps in structures featured by a finite scale of heterogeneities.

TL;DR: In this article, a bi-velocity theory for both single and multicomponent fluids is shown to predict the existence of mechanodiffusion phenomena, the latter referring to coupling arising between diffuse momentum transport (embodied in the fluid's viscous stress tensor) and species or energy diffusion stemming respectively from gradients in species concentration and temperature.