Showing papers in "International Journal of Solids and Structures in 2002"

TL;DR: In this paper, an equilibrium relation is developed to govern the behavior of the couples, which constrained the couple stress tensor to be symmetric, and the symmetric curvature tensor became the only properly conjugated high order strain measures in the theory to have a real contribution to the total strain energy of the system.

TL;DR: In this article, two different forms of CZMs (exponential and bilinear) are used to evaluate the response of interfaces in titanium matrix composites reinforced by silicon carbide (SCS-6) fibers.

TL;DR: In this paper, a nanoscale continuum theory is established to directly incorporate interatomic potentials into a continuum analysis without any parameter fitting, which is applied to study the linear elastic modulus of a single-wall carbon nanotube.

TL;DR: In this paper, a generalized finite-element-based, cross-sectional analysis for nonhomogenous, initially curved and twisted, anistropic beams is formulated from geometrically nonlinear, three-dimensional elasticity.

TL;DR: In this article, an analysis of the propagation of a penny-shaped hydraulic fracture in an impermeable elastic rock is presented, where the fracture is driven by an incompressible Newtonian fluid injected from a source at the center of the fracture.

TL;DR: In this article, a truss core panel with a tetragonal topology was fabricated from a beryllium-copper alloy using a rapid prototyping approach and investment casting, and measurements were performed on these panels in flexure, shear and compression.

TL;DR: In this paper, the authors evaluate linear elastic stress fields in the neighborhood of U-and V-shaped notches in plane plates. But the main aim is to improve the accuracy of an approximate solution already proposed in the literature by changing the polynomial arrangement of complex potential functions and properly adapting the boundary conditions.

TL;DR: In this paper, a general constitutive theory of the stress-modulated growth of biomaterials is presented with a particular accent given to pseudo-elastic soft living tissues, and the governing equations of the mechanics of solids with a growing mass are revisited within the framework of finite deformation continuum thermodynamics.

TL;DR: In this article, the authors used a video-controlled testing system to determine the evolution of volume strain in polyethylene terephtalate (PET) and high-impact polystyrene (HIPS) by measuring in real time the three principal strain components in a small volume element, while the specimens are deformed under uniaxial tension at constant true strain rate.

TL;DR: In this article, a new interaction energy integral method for the computation of mixed-mode stress intensity factors at the tips of arbitrarily oriented cracks in functionally graded materials is described, where the auxiliary stress and displacement fields are chosen to be the asymptotic near-tip fields for a homogeneous material having the same elastic constants as those found at the crack tip in the functionally graded material.

TL;DR: In this article, a review of the mechanics of lap-shear joints is followed by a detailed analysis of the problem using a cohesive-zone approach, which allows not only the influence of geometry to be considered, but also allows the cohesive properties of the interface and plastic deformation of the adherends to be included in the analysis.

TL;DR: In this article, the authors reported that during uniaxial tensile loading, the stress-induced transformation in the micro-tubes is realized by the initiation and growth of a macroscopic spiral martensite band with a quite sharp austenite-martensite (A-M) interface.

TL;DR: In this article, a dynamic model is developed to examine the vertical interaction of the rail track and the wagon system, where the wagon with four wheelsets representing two bogies is modelled as a 10 degree of freedom subsystem, and the track is modeled as a four-layer subsystem and the two subsystems are coupled together via the nonlinear Hertz contact mechanism.

TL;DR: In this article, a micro-mechanical model based on the actual deformations of the basic cell and additional internal deformation modes, with regard to the standard two-step homogenisation procedure is presented.

TL;DR: In this article, the effect of the wavelet transform on the Lipschitz exponent of the fundamental vibration mode has been investigated, which can be used as a useful indicator of the damage extent.

TL;DR: In this paper, the in-plane buckling of circular arches with an arbitrary cross-section and subjected to a radial load uniformly distributed around the arch axis is investigated, and an energy method is used to establish both non-linear equilibrium equations and buckling equilibrium equations for shallow arches.

TL;DR: In this paper, the authors provide a formulation and numerical analysis of a two-dimensional plane strain model with multiple discrete voids located ahead of a pre-existing crack tip, and demonstrate that improvements to be expected in fracture toughness by reducing the population of second phase particles responsible for nucleating voids cannot be understood in terms of trends of one mechanism alone.

TL;DR: In this paper, a mesh-free Galerkin simulation of dynamic shear band propagation in an impact-loaded pre-notched plate is carried out in both two and three dimensions.

TL;DR: In this paper, a non-associated flow rule and the volumetric plastic strain as hardening parameter is combined with a yield surface proposed by Menetrey and William (1995).

TL;DR: In this article, a three-dimensional, anisotropic constitutive model is presented to model the in-plane elastic-plastic deformation of paper and paperboard, where the initial yield surface is directly constructed from internal state variables comprising the yield strengths measured in various loading directions and the corresponding ratios of plastic strain components.

TL;DR: In this article, a discrete singular convolution (DSC) algorithm is proposed for high frequency vibration analysis of plate structures. But, the proposed method is not suitable for the case of square plates with six distinct boundary conditions.

TL;DR: This paper deals with the direct and simultaneous estimation of parameters used in some constitutive laws by a specific procedure based on a relevant use of the principle of virtual work to provide directly the unknown parameters.

TL;DR: The ability of a digital image correlation technique to capture the heterogeneous deformation fields appearing during compression of ultra-light open-cell foams support the interpretation that the collapse of light open- cell foams occurs as a phase transition phenomenon.

TL;DR: In this article, an approximate theory based on assumed strain and displacement fields, the Rayleigh-Ritz technique, and virtual work is used to predict the snap-through forces and moments for three families of unsymmetric fiber-reinforced composite laminates.

TL;DR: In this article, the effects of clearance and lubrication are studied for revolute and spherical joints with a finite element-based dynamic analysis of nonlinear, flexible multibody systems.

TL;DR: In this paper, a method for free vibration analysis of rectangular plates with any thicknesses, which range from thin, moderately thick to very thick plates, is described. And the analysis is based on a linear, small-strain, three-dimensional elasticity theory.

TL;DR: In this paper, a radial point interpolation method (radial PIM) is proposed to solve Biot's consolidation problem using meshless method called a radial PIM, which is advantageous over the meshless methods based on moving least-square (MLS) method in implementation of essential boundary condition and over the original PIM with polynomial basis in avoiding singularity when shape functions are constructed.

TL;DR: In this article, a theory for the prediction of the size dependence of torsional rigidities of nanosized structural elements is developed, which can aid the development of design methodologies for nanoscale structural elements without the need for full scale atomistic simulations.

TL;DR: In this article, a macroscopic model for highly compacted expansive clays composed of a charged solid phase saturated by a binary monovalent aqueous electrolyte solution is derived based on a rigorous scale-up of the microstructural behavior.

TL;DR: In this paper, a set of three-dimensional constitutive equations are proposed for modeling the nonlinear dissipative response of soft tissue, which are phenomenological in nature and they model a number of physical features that have been observed in soft tissue.