Showing papers in "International Journal of Solids and Structures in 1991"
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TL;DR: In this paper, a generalized plasticity model with higher-order spatial gradients of the equivalent plastic strain in the yield condition was proposed and it was shown how these gradients affect the critical condition for the onset of localization and allow for a wavelength selection analysis leading to estimates for the width and or spacing of shear bands.
779 citations
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TL;DR: In this article, a two-dimensional electroelastic analysis is performed on a transversely isotropic piezoelectric material containing defects, and a general solution is provided in terms of complex potentials, with emphasis being placed on stress concentrations that arise in the vicinity of circular and elliptical holes.
386 citations
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TL;DR: In this paper, a fully nonlinear, three-dimensional rod model is developed that incorporates transverse shear and torsion-warping deformation, and the underlying variational formulation of the model is discussed, and computational procedures employing a Galerkin projection are addressed.
319 citations
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TL;DR: In this paper, a tensor transformation of the effective elastic constants for isotropic orientation statistics through the use of a second-order crack density tensor is presented, which is based on a tensorial transformation for estimating the elastic stiffness tensor.
242 citations
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TL;DR: In this paper, an asymptotic elasticity problem is analyzed to predict whether a straight crack path can occur within a brittle adhesive layer, and the location of the crack in terms of the combination of applied intensity factors and the mismatch in elastic moduli between the layer and the adjoining material.
242 citations
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TL;DR: In this paper, the authors studied the critical hardening modulus for deformation into a planar band in the incremental response of elasto-plastic material in the case of small strains and rotations.
238 citations
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TL;DR: In this paper, explicit expressions for the spectral properties of the bifurcation problem involving discontinuities for general elastic-plastic materials are presented, and it is shown that the classical value of the critical hardening modulus derived by Rice (1976) is the only possible one.
228 citations
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TL;DR: In this paper, the layer-wise laminate theory of Reddy is extended to account for multiple delaminations between layers, and the associated computational model is developed, which is validated through several numerical examples.
215 citations
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TL;DR: In this article, the authors extended the cohesive crack model to mixed mode propagation and an experimental confirmation is provided by testing four-point shear specimens of concrete, where a constant crack mouth sliding displacement rate is imposed, so that is is possible to control and detect the snapback load vs deflection branches.
197 citations
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TL;DR: In this article, a spatial rescaling has been used to reduce the orthotropic problems to equivalent problems in materials with cubic symmetry, and solutions for orthotropic materials can be constructed approximately from isotropic material solutions or rigorously from cubic ones.
187 citations
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TL;DR: In this paper, the analytical conditions under which a pin-jointed assembly, which has s independent states of self-stress and m independent mechanisms, tightens up when its mechanisms are excited are discussed.
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TL;DR: In this article, a first-order boundary perturbation method based on Muskhelishvilli's complex variable representations is formulated for the two-dimensional elasticity problem of a nearly-circular inclusion embedded in an infinite dissimilar material.
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TL;DR: In this article, the mechanisms through which the bulge is initiated, its initial growth and its eventual propagation along the length of the tube are studied experimentally and analytically.
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TL;DR: In this paper, a plane strain analysis of a constant length hydraulic fracture embedded in an infinite poroelastic domain is presented, where the fracture is uniformly loaded by fluid pressurisation.
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TL;DR: In this paper, experimental results on the deformation and failure of clamped beams, made from aluminium alloy or mild steel and struck by a mass, are reported, complete engineering and true stress-strain curves at strain rates up to 140 s -1 are presented for the materials.
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TL;DR: In this paper, the free vibration analysis of homogeneous and laminated doubly curved shells on rectangular planform and made of an orthotropic material has been presented using the three-dimensional elasticity equations.
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TL;DR: In this paper, a two-dimensional self-consistent micromechanical damage model is presented for microcrack-weaked brittle solids under "cleavage l" deformation processes.
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TL;DR: In this paper, the sheet metal ductility for a thermoviscoplastic material is analyzed by using a perturbation method and a significant rate of growth of the instability is characterized in terms of an effective instability analysis.
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TL;DR: In this paper, the effects of variation in the lamination and geometric parameters of multilayered composite cylinders on the accuracy of the static and vibrational responses predicted by eight modeling approaches, based on two-dimensional shear-deformation shell theories.
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TL;DR: In this paper, exact solutions for the buckling loads of variable cross-section columns, loaded by variable axial force, for several boundary conditions are given. But they do not consider the effects of the axial load on the stiffness matrix.
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TL;DR: In this paper, the constitutive coefficients are derived in explicit terms of grain contact properties, and a procedure based on finite element analysis is described to obtain approximated solutions for boundary value problems.
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TL;DR: For a two-dimensional anisotropic plate, the Green's function satisfying traction-free boundary conditions around an elliptic hole is developed using Stroh's formalism as mentioned in this paper.
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TL;DR: In this paper, an elastoplastic analysis of axisymmetric conical indentation has been made using the finite element method, and the results show that the shapes of the plastic zones depend strongly on both indenter angle and the ratio of Young's modulus to yield strength.
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TL;DR: In this article, a general beam theory has been proposed which is applicable to all regular prismatic systems and is used to find the appropriate beam-like flexibilities for trusses.
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TL;DR: In this article, an analytical solution based on the usual Fourier series expansion for simply-supported plates, combined with Laplace transform techniques, is proposed for the impact problem solution, which is shown to solve the problem of impact of laminated composite materials.
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TL;DR: In this paper, the problem of linear elasticity for an infinite number of non-intersecting spherical and ellipsoidal inhomogeneities is attacked, where the Eshelby equivalent inclusion method is used.
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TL;DR: Vlasov and Das as mentioned in this paper extended their model to incorporate numerically this physical characteristic of the soil and developed an effective iterative technique to solve the beam-on-elastic-foundation problem where the soil is assumed to have a uniform depth with a rigid base at the bottom.
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TL;DR: In this paper, a group-theoretic method for the analysis of bifurcation behavior of regular-polygonal symmetric structures is described, and the existence of a potential function plays a substantial role for the existence and stability of the branching paths.
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TL;DR: In this article, a mean-field, approximate theory is developed for the determination of the overall stress-strain relation of a two-phase composite, consisting of randomly oriented elastic, spheroidal inclusions and a ductile matrix.
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TL;DR: In this article, an analytical study was conducted to determine the fundamental frequencies and critical buckling loads for laminated anisotropic circular cylindrical shell panels, including the effects of transverse shear deformation and rotary inertia, by using the Galerkin technique.