Showing papers in "International Journal of Mechanical Sciences in 1995"

TL;DR: In this article, the authors investigated the relationship between microstructure and elastic properties in two-dimensional cellular materials (honeycombs) and proposed a finite element analysis (FEA) to determine effective elastic moduli for low density honeycombs.

TL;DR: In this article, a constitutive model which can suitably predict the deformation behavior including transformation under a wide range of deformation rate and temperature has been developed by employing Olson and Cohen's model for strain-induced martensitic transformation kinetics.

TL;DR: In this paper, Young's modulus of conventional and re-entrant open cell foams are obtained by modeling the three-dimensional unit cell as an idealized 14-sided unit cell.

TL;DR: In this article, a new engineering model for the superplastic forming of domes has been developed, which permits the calculation of the pressure-time cycle and the thickness distribution without complicated numerical calculations.

TL;DR: In this article, the plane-strain finite element method is applied to model the orthogonal metal cutting of annealed low carbon steel with continuous chip formation, and four sets of simulation results for cutting with −2°, 0°, 5°, and 15° rake angle are summarized and compared to analyze the effects of rake angle in the cutting processes.

TL;DR: In this article, a rate-sensitive crystal plasticity model is applied directly in conjunction with the Marciniak-Kuczynski approach to predict forming limit diagrams (FLD) for annealed FCC sheet metals having various initial textures.

TL;DR: In this paper, a method for predicting side wall curls in the two-dimensional draw bending operation using moment-curvature relationships derived for sheets undergoing plane strain stretching, bending and unbending deformations is presented.

TL;DR: In this article, the authors describe an experimental study of some aspects of upheaval buckling of buried pipelines by means of a small-scale model apparatus, and show that the observed buckling loads agree satisfactorily with the theoretical analysis.

TL;DR: In this article, the authors established an analytical basis for the prediction of chatter stability in the turning process in the presence of wear flat on the tool flank and provided the analytical solution for the limits of stability in terms of the machine characteristics, structural stiffness, cutting stiffness, specific contact force, cutting conditions and cutter geometry.

TL;DR: In this article, a complete analysis of thermal stresses within a thick-walled cylinder under dynamic internal temperature gradient is presented, in a non-steady state, using a numerical model.

TL;DR: In this article, a higher order shear deformation theory is proposed to analyse the effects of various shell geometries and boundary conditions on the vibration responses, which results in cubic expressions for the transverse shear distribution through shell thickness.

TL;DR: In this paper, the effect of transient creep on the indentation behavior of a creeping solid has been investigated for a strain hardening primary creep law, and the functional form of the relationship between the uniaxial response of the solid and the material indentation behaviour of the material is explored.

TL;DR: In this article, a theoretical and experimental study has been carried out on the transient characteristics of a centrifugal pump during starting and stopping periods, where a small length of discharge pipe line is connected to discharge flange of the pump.

TL;DR: In this paper, a theoretical analysis of plastic flow at the pole of an elliptical bulge as it forms through a die from applying normal pressure to thin metallic sheets is presented, where the inherent anisotropy present in as-rolled sheets of three steels and a brass is characterized from in-plane r-values.

TL;DR: In this paper, the first known exact solutions for the free vibrations of thick annular sectorial plates having simply supported radial edges and arbitrary conditions along the circular edge are derived for the Mindlin differential equations of motion, which contain non-integer order ordinary and modified Bessel functions of the first and second kinds, and six arbitrary constants of integration.

TL;DR: In this paper, the authors describe an experimental study of the buckling of buried pipelines by means of a small-scale model apparatus, which involves a thin-walled steel pipe of diameter 6 mm and length 5 m, buried in a bed of artificial soil.

TL;DR: In this paper, a stiffness ratio, defined as the ratio of circumferential stiffness to radial stiffness, is used as the parameter to indicate the degree of anisotropy.

TL;DR: A mathematical model for symmetrical sandwich sheet rolling is proposed by using the stream function method and the upper bound theorem to investigate the plastic deformation behavior of sheets at the roll-gap as mentioned in this paper.

TL;DR: A variational formulation and the associated finite element equations have been derived for general three-dimensional deformation of a planar anisotropic rigid-plastic sheet metal which obeys the strain-rate potential proposed by Barlat et al as discussed by the authors.

TL;DR: A spline finite strip capability is presented for predicting the buckling stresses and natural frequencies of rectangular laminated plates in this paper, where the superstrip concept is incorporated into the solution procedure.

TL;DR: Several aspects of the mechanics of indentation of a half-space by an elastic indenter which is either conical or wedge-shaped are addressed in this paper, including the state of stress induced when the indenter is either pressed normally or sliding with Coulomb friction, the strength of the contact, and the influence of shearing forces less than those necessary to cause sliding, including those induced by elastic mismatch.

TL;DR: In this article, the authors derived the equation of motion which governs the lateral vibration of a spinning pretwisted beam and applied the Galerkin method to obtain the associated finite element equations of motion.

TL;DR: In this article, a new method was proposed to give comprehensive consideration of the various factors, such as heat transfer, leakage, gas pulsation and valve motion, that influence the working process of the compressor and establish all the mathematical simulation equations.

TL;DR: In this paper, a mathematical model of the burnishing process and its solution is presented, where the machining material has elastic-plastic properties with hardening in the contact area, and the friction between the tool and the machined object is also taken into consideration.

TL;DR: The effect of anisotropy on pure bending of sheet metals has been studied in this article, and it was found that it has a relatively large effect on the bending moment.

TL;DR: In this article, a closed-form approximate solution for the clamped rectangular plate with reinforcing fibers parallel to the plate boundaries was derived by utilizing the extended Kantorovich method, and the convergence of this procedure is very rapid, in that the final form is reached after only four iterations, and that the resulting solution is independent of the initial choice.

TL;DR: In this paper, the effect of the interaction coefficients in the Tsai-Wu failure criterion equation is considered and the geometries and hoop to axial stress ratios for which radial stresses are likely to be important are stated.

TL;DR: In this article, a finite-length tensioned beam on a damped elastic foundation is acted upon by an infinite series of equally spaced and steadily moving concentrated transverse loads, and the deflection response of the beam is obtained by an expansion in terms of the normal modes of vibration.

TL;DR: In this paper, the Galerkin method is employed to discretize the nonlinear governing equation of the axially moving string into ordinary differential equations, which is based on independent modal space control (IMSC).

TL;DR: In this paper, the static postbuckling of flat and doubly-curved shallow panels under the combined action of a system of uniaxial/biaxial compressive edge loads and a lateral pressure field is investigated, and the effects of transverse shear, initial geometric imperfections and tangential edge constraints upon load carrying capacity of curved panels are emphasized.