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Showing papers in "International Journal of Solids and Structures in 1986"


Journal ArticleDOI
TL;DR: In this paper, the structural mechanics of assemblies of bars and pinjoints, particularly where they are simultaneously statically and kinematically indeterminate, are investigated, and an algorithm is set up which determines the rank of the matrix and the bases for the four subspaces.

683 citations


Journal ArticleDOI
TL;DR: In this paper, experiments were performed to determine the dependence of torsional and bending rigidity upon diameter for rod-shaped specimens of dense polyurethane foam and syntactic foam.

390 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that δ is invariant with respect to the orientation of the plane boundary (in the case of half-plane problems), the semi-infinite crack and the crack and interface relative to the materials.

326 citations


Journal ArticleDOI
TL;DR: In this article, the authors investigated the extent of the crack-tip stress field using reflected and transmitted caustics and found that plane-stress conditions prevail at distances from the crack tip greater than half the specimen thickness, while no significant plane-strain region is detected.

245 citations


Journal ArticleDOI
TL;DR: In this paper, an elastic-viscoplastic model of a material with internal imperfections is proposed, which describes the work-hardening viscoplastic response of solid and takes also account of the interactions of microvoids.

144 citations


Journal ArticleDOI
TL;DR: In this paper, the authors derived a constitutive law for the inelastic behavior of a second phase ceramic which undergoes a martensitic phase transformation when a function of the macroscopic stress state attains a critical value.

139 citations


Journal ArticleDOI
TL;DR: In this article, the authors developed closed-form solutions for forces on projectiles that penetrated geological targets using a linear hydrostat and a Mohr-Coulomb failure criterion with a tension cutoff.

121 citations


Journal ArticleDOI
TL;DR: In this paper, a theory of A-15 superconductors near cubic-tetragonal phase transformations is proposed. But it is based on the assumption that the superconductor is a thermoelastic body subject to certain material constraints.

109 citations


Journal ArticleDOI
TL;DR: In this article, the authors derived explicit formulas for the time rate of change of the logarithmic strains ln U and ln V, where U and V are the right and left stretch tensors, respectively.

86 citations


Journal ArticleDOI
TL;DR: In this article, conditions for the initiation of a localized shear bifurcation are obtained for hollow circular cylinders and spheres under applied uniform internal pressure and the location of this bifurbation relative to the pressure maximum is investigated.

68 citations


Journal ArticleDOI
TL;DR: In this article, it was shown that depending on the form of the strain energy function and for some values of load an asymmetric stretching can equilibrate the symmetric loading as well as the more obvious symmetric stretching.

Journal ArticleDOI
D.J. Han1, Wai F. Chen1
TL;DR: In this paper, a general form of strain-space plasticity formulation was proposed to model the softening behavior of a concrete element failed in a mixed crushing/cracking mode.

Journal ArticleDOI
TL;DR: In this article, a model for shape memory is presented which is capable of simulating the plane-strain-response of a polycrystalline body under biaxial loading.

Journal ArticleDOI
TL;DR: In this article, a comprehensive mode interaction analysis is presented for thin-walled columns having doubly symmetric cross-sections and carrying axial compression, which is based on Koiter's theory of mode interaction and employs finite strips to describe local buckling deformation.

Journal ArticleDOI
TL;DR: In this article, the authors considered the flexural vibration of symmetrically laminated rectangular plates, based upon the adoption of a shear-deformation plate theory, which is an extension of Mindlin's theory for isotropic plates and includes the effects of both transverse shear deformation and rotary inertia.

Journal ArticleDOI
TL;DR: In this article, a simple moving hinge model which describes the deformation of a ring into a "dumbbell" shape is proposed and closed-form solutions are derived for the pressure necessary to initiate and propagate the buckle down the tube.

Journal ArticleDOI
TL;DR: In this article, the authors explore a classic problem in a new light, and show that underlying symmetries are closely linked to the form of bifurcation experienced on buckling, and hence to the gross instability of the phenomenon.

Journal ArticleDOI
TL;DR: In this paper, general contact boundary conditions are formulated using the notions of subdifferentials and generalized gradients, and variational formulations are presented for general factional systems, i.e. solid bodies interacting by contact forces.

Journal ArticleDOI
TL;DR: In this paper, an approximate statically admissible solution of the elastoplastic interface is described for the plane strain problem of a pressurized circular hole in a plane subject to a non-hydrostatic stress at infinity (Problem of Galin).

Journal ArticleDOI
TL;DR: In this paper, a quasi-static neck propagation in polymers is studied for the case of plane strain tension, and a finite element solution characterizes the complete development of a neck in an initially smooth specimen.

Journal ArticleDOI
TL;DR: In this paper, constitutive equations for elasto-plastic porous solids with their intercommunicating void spaces filled with a viscous fluid and gas are developed, making full use of the thermodynamical restrictions.

Journal ArticleDOI
TL;DR: In this paper, an analytical analysis of free vibrations of a heated orthotropic rectangular thin plate under various boundary conditions is presented; the nonlinear governing equations are derived from von Karman plate theory and Berger's analysis separately; from them the Duffing-type nonlinear ordinary equations are then obtained by employing Galerkin's method using one-term approximation.

Journal ArticleDOI
TL;DR: In this paper, a finite element formulation for solving general three-dimensional consolidation problems using variational concepts is presented, which involves coupled displacement and pore pressure fields and has been numerically implemented to analyze boundary value problems of axisymmetric (torsionless) and plane strain configurations.

Journal ArticleDOI
TL;DR: In this paper, the analysis of elasto-plastic plate bending using a boundary integral equation formulation is described, where the integral equations are solved using standard boundary element techniques and the plasticity, as well as the external lateral load, appears in a domain integral.

Journal ArticleDOI
TL;DR: In this article, the authors present experimental evidence which demonstrates that, once a shell has been locally dented, a buckle which propagates within the confines of the cavity can be initiated, such a buckle has the potential of completely collapsing the liner.

Journal ArticleDOI
TL;DR: In this paper, an efficient elastodynamic infinite element capable of propagating Rayleigh waves and body waves in a homogeneous half-space is presented, where the displacement interpolation functions are presented in convenient explicit forms by formulating the infinite element with respect to a spherical coordinate system.

Journal ArticleDOI
TL;DR: In this paper, a bifurcation analysis of a finite thickness layer embedded in an infinite body of different material properties is carried out, and the conditions required for in-plane undulations confined to the vicinity of the bimaterial interface to develop from a state of homogeneous plane-strain tensile deformation are investigated.

Journal ArticleDOI
TL;DR: In this article, a theoretical foundation of the J concept for a three-dimensional flawed structure in large-scale yielding assuming incremental theory of plasticity is still missing, and only numerical studies may help to close this gap.

Journal ArticleDOI
TL;DR: In this paper, a class of path-independent integrals for sensitivity analysis with respect to translation, rotation or expansion of defects is derived, and it is shown that sensitivity analysis can be performed by using these integrals.

Journal ArticleDOI
TL;DR: In this article, the response of an isotropic cantilever beam of finite length under the action of frictionless cylindrical and flat indenters is studied using a local-global technique, which accounts for both the local behavior near the indenter, as well as the global beam behavior.