Showing papers in "International Journal of Engineering Science in 1984"

TL;DR: In this paper, an approximate theory was established to derive the stress and strain state of constituent phases, stress concentrations at the interface, and the elastic energy and overall moduli of the composite.

TL;DR: In this paper, the distribution of directional data is characterized by what is termed fabric tensors, and a formal least square approximation is applied, and three kinds of fabric tensor are defined in connection with the choice of a basis of the space of functions on a unit sphere or a unit circle.

TL;DR: In this paper, the transverse plane wave dispersion in linear, non-local micropolar elastic solids is derived by equating the frequency of the Transverse Acoustical (TA) branch at the end of the Brillouin zone.

TL;DR: In this paper, a general mathematical formulation is given to the problem of determining the structural anisotropy by means of the stereological principle, and three cases are considered: (i) the number of intersections with a probe line or plane is viewed as a transformation, which is termed the “Buffon transform”, between two distribution densities, and a form of its inverse transform is given.

TL;DR: In this article, a Dyson equation is used for comparisons of different approximations for the calculation of the wave number of the ensemble averaged linear harmonic response of a discrete random medium.

TL;DR: In this paper, a linear elastic body in unilateral contact with a rigid support and subjected to conditions of Coulomb friction is considered, and it is shown that there exists a solution of this Signorini problem with friction.

TL;DR: In this paper, it is shown that for every linear or nonlinear problem, whose solution exists and is unique, one may find many functionals whose minimum is the solution of the problem.

TL;DR: In this paper, the total potential energy for a body composed of an anisotropic micropolar linear elastic material is developed and used to formulate a displacement type finite element method of analysis.

TL;DR: In this paper, a study of the propagation of plane electromagneto-thermo-elastic harmonic waves in an unbounded isotropic conducting medium permeated by a primary uniform magnetic field when the entire medium rotates with a uniform angular velocity is made.

TL;DR: In this paper, a time and temperature dependent plasticity model is formulated in a Lagrangian system to describe finite deformation, where history dependence and large strain behavior are incorporated through the introduction of one tensor internal variable.

TL;DR: In this article, a mathematical model has been developed which describes the various physical processes of an intumescent system by considering mass and energy control volumes, explicitly accounted for by assuming it to be a function of mass loss.

TL;DR: In this paper, the propagation of Love waves in an isotropic homogeneous elastic medium is analyzed in the context of the linear theory of nonlocal continuum mechanics, and the lower bound for the speed of Love wave predicted by the nonlocal theory agrees better with the seismological observations of such waves than its counterpart furnished by the conventional theory.

TL;DR: In this paper, Cundall and Strack used simplified models of the interaction forces acting between essentially rigid macroscopic particles to study quasi-static deformations in assemblies of two-dimensional circular particles.

TL;DR: In this paper, the propagation of acoustic waves in a fluid-saturated porous medium containing a continuously distributed system of fractures is discussed, where the porous medium is assumed to consist of two degrees of porosity and the resulting model thus yields three types of longitudinal waves associated with the elastic properties of the matrix material and one each for the fluids in the pore space and the fracture space.

TL;DR: In this article, the authors considered the problem of transient free convection in a porous medium adjacent to a vertical semi-infinite flat plate with a step increase in wall temperature and surface heat flux and obtained the governing equation for the boundary layer thickness by an integral method.

TL;DR: In this article, it was shown that the (approximate) effective moduli depend only on two damage tensors and five scalar coefficients to be obtained from the solution of a simple stress boundary value problem of elasticity.

TL;DR: A critical analysis of foundations and domain of applicability of the theory of elastic media with microstructure and non-local elasticity is given in this article, where a critical analysis is given of the applicability and foundation of elastic models.

TL;DR: In this article, the authors studied axial splitting and shear failure of uniaxially compressed and triaxially compressed rock specimens, respectively, based on a microscopic consideration.

TL;DR: In this paper, the average behavior of unidirectional fiber-reinforced composites, whose constituents are anisotropic in the elastic region and isotropic viscoplastic in the inelastic region, is determined.

TL;DR: In this paper, it is shown that the steady rotation of a container filled with a spatially uniform suspension of identical, otherwise neutrally buoyant, dipolar spherical particles in a Newtonian fluid, each containing an embedded gravitational dipole, will give rise to an antisymmetric stress state on the length scale of the suspension.

TL;DR: In this paper, the dynamic of moving interface in a porous medium for non-Newtonian fluids of power law with yield stress is investigated, and an approximate analytical solution for determining the interface position and its velocity at any time is presented.

TL;DR: In this article, the rheological behavior effect of non-Newtonian fluids on the dynamic of moving interface in porous media has been investigated and an approximate solution was also presented for a situation when the two fluids are of power-law with a yield stress.

TL;DR: In this paper, the authors extend Berker's analysis by allowing the plates to be porous and show that an infinite set of solutions is possible to the flow of two infinite parallel plates rotating with the same angular velocity about an axis.

TL;DR: In this paper, a closed-form solution for uniform, simply supported beams subjected to a stationary excitation that is white both in space and time was found for the probabilistic characteristics of a beam under a number of separate or combined dampings.

TL;DR: In this article, the authors studied the effect of the microrotation gradient on the skin friction and heat transfer in micropolar fluid at the stagnation point of a 2-dimensional and an axisymmetric body.

TL;DR: In this article, the general form of the fundamental solutions and fundamental matrices associated with the equations of the micropolar elastostatics as well as the integral representation by means of these matrices are determined.

TL;DR: In this article, the authors derived constitutive equations for a granular flow of disk-shaped solids in a 2-dimensional, simple shear field, where binary collisions are assumed to be the major mechanism for momentum transfer.

TL;DR: In this paper, the stability of a two-dimensional compressible supersonic flow in the wake of a flat plate is discussed and the spatial stability of an infinitesimal disturbance in the fluid is considered.

TL;DR: The Bedded Crack Model (BCM) as discussed by the authors is a constitutive model for brittle and quasibrittle materials that describes fracture in terms of the evolution of a statistical distribution of microcracks.