Showing papers in "International Journal of Solids and Structures in 1977"

TL;DR: An elasto-plastic stress-strain theory for cohesionless soil with curved yield surfaces is developed on the basis of soil behavior observed in laboratory tests as discussed by the authors, which is applicable to general three-dimensional stress conditions, but the parameters required to characterize the soil behavior can be derived entirely from results of isotropic compression and conventional drained triaxial compression tests.

TL;DR: In this article, the authors considered the problem of finding the root of λ which gives the most serious state of stress in the vertex region (the region r → 0) is the root closest to the limiting value Re λ > −3/2.

TL;DR: In this article, the problem of determining the optimum shape of a thin, elastic, clamped column of given length and volume, such that the fundamental buckling load is a maximum was studied.

TL;DR: In this article, a method for the stress analysis of plane cracks of any shape in a stressed three-dimensional linear elastic space is presented, which utilizes a system of integral equations which is defined over the crack area only.

TL;DR: In this article, the fundamental influence functions in the governing equations for linearized coupled deformation and pore-fluid diffusion are characterized directly and via reciprocity theorem; inelastic straining or porosity changes, body-forces on fluid or solid and arbitrary fluid injection all elicit a response composed by appropriate distribution of point-force and fluid-source densities.

TL;DR: In this paper, the nonisothermal finite strain dynamics of a porous solid containing a viscous fluid is developed on the basis of a new thermodynamics of open systems and irreversible processes.

TL;DR: In this paper, a spherical rubber balloon of the sort used in meteorological applications is inflated and the onset of aspherical deformation is observed after the pressure maximum has been attained.

TL;DR: In this article, a study of the non-linear prebuckling state and the bifurcation and initial postbuckling behavior of infinitely long, cylindrical, elastic tubes subjected to bending, pressure and axial loads is presented.

TL;DR: In this article, a theory for small bending and stretching of sandwich-type shells was developed, which is an extension of the known theory of homogeneous thin elastic shells and has been applied to the solution of problems concerning flat plates, circular rings, circular cylindrical shells, and spherical shells.

TL;DR: In this article, the effect of couple stresses at a crack tip was investigated by considering two particular problems, and it was shown that the energy release rate tends to the classical elastic value as the couple stress (or micropolar) parameter tends to zero.

TL;DR: In this paper, a direct boundary-integral equation formulation for the plane strain problem in thermoelastoplasticity is presented, which is correct in terms of displacements or velocities.

TL;DR: In this article, the authors considered the incremental theory of plasticity with nonassociated (lacking normality) flow laws and established extremum properties and uniqueness conditions for solution of the rate problem.

TL;DR: In this paper, a general theory describing the consolidation of a porous elastic soil is presented, where the governing equations have been cast in a rate form and the laws which determine deformation and pore fluid flow are presented in a frame indifferent manner.

TL;DR: In this paper, a large deformation theory for layered shells of arbitrarily varying thickness and using a piecewise smooth displacement field is developed, which allows the results to be presented in a simple compact form analogous to the theory of monocoque shells.

TL;DR: In this paper, a single crack in an anisotropic material in which the displacement and stress are independent of one Cartesian coordinate is considered, and no symmetry elements of the material are assumed and the temperature, displacement, and stress fields are determined for an arbitrary distribution of temperature or heat flux.

TL;DR: In this paper, a Hankel transformation is used to solve the problem of stress and displacement expression for any point of the medium, and a curve of numerical results is presented for the results.

TL;DR: The boundary integral equation (BIE) method as mentioned in this paper is a generalization of the finite element analysis (FEA) for the problem of boundary value analysis of a complex body whose boundary surface does not coincide with the coordinate surfaces of the selected coordinate system.

TL;DR: In this article, the cantilever follower force problem with external damping is extended to a three-parameter case, including a concentrated mass, a linear elastic spring, and a partial follower force at the free end.

TL;DR: In this paper, a general thermodynamic strain space formulation of rate independent plasticity by means of plastic internal variables is presented, with the plastic work being the only plastic internal variable and necessary and sufficient consitbns on the elastic moduli and their change with plastic deformation are derived.

TL;DR: In this article, an infinitely long, axially compressed, circular cylindrical shell with an imperfection in the shape of the axisymmetric classical buckling mode, undergoing steady or non-steady creep, is analyzed.

TL;DR: In this paper, a finite strip method is presented for calculating the linear buckling stresses of structural assemblies of long, thin plate components which, in general, are curved and which are rigidly joined together at their longitudinal edges.

TL;DR: In this paper, a finite element formulation for a two phase soil with a viscoelastic skeleton is developed and a method of integration is proposed which considerably reduces the body of hereditary information necessary to carry forward the solution and it is shown that under certain circumstances this integration method is unconditionally stable.

TL;DR: In this article, an approximate analytical solution is obtained for the problem of minimizing the cross-sectional area of elastic, doubly-connected cylindrical bars for given lower bounds on torsional and flexural rigidities.

TL;DR: In this article, the most general form of the Helmholtz potential consistent with the assumption of insensitivity of the elastic relations to inelastic deformation has been derived and a geometric interpretation of the Clausius-Duhem restriction has been made employing the concept of a thermodynamic reference stress.

TL;DR: In this paper, a computational scheme for the calculation of the optimal design of trusses is presented, where constraints on the design variables (the cross-sectional areas) are considered.

TL;DR: It becomes clear that passing the patch test is not a necessary condition for convergence and that the simple patch test will be sufficient for accuracy and not merely for convergence analysis.

TL;DR: In this article, the kinematic relation between surface strains and changes in Gaussian curvature was developed for energy calculations of thin elastic shells, and two examples of energy calculations for shells loaded by point forces were given.

TL;DR: In this paper, the hysteretic behavior of a prismatic bar subjected to repeated axial loading was analyzed under the combined action of axial force and bending moment, and it was shown that due to the load cycle of tension and compression an initially straight and plastically bent bar undergoes a plastic extension upon the recovery of the straight configuration.

TL;DR: In this paper, a complex transfer matrix approach to wave propagation perpendicular to the layering of a composite of periodic and disordered structure is worked out showing propagating and stopping bands of time-harmonic waves and the singular cases of standing waves.

TL;DR: In this paper, a rigid flat-ended punch with rectangular contact area pressed into a linear elastic half-space to a uniform depth was considered, and both the lubricated and adhesive cases were treated.