... particle hydrodynamics (SPH) and elastoplastic soil theory was developed to simulate three-dimensional cohesionless soil turning. Comparative analyses between two- and three-dimensional conditions were conducted to assess the influence of lateral confinement on soil failure behavior. Findings...

.../approach Elastoplastic problems can be defined as a coupled problem of the equilibrium equation for the overall structure and the yield equations for the stress state at every material point. When applying the Newton method to the coupled residual equations, the displacement field and the internal...

...Nicolò Spiezia; Valentina Anna Lia Salomoni Purpose This paper proposes a unified original general framework, designed to theoretically develop and to extremely easily implement elastoplastic constitutive laws defined in the so called two-invariants space, both in small and finite strain regime...

...Fabio De Angelis; Robert L. Taylor Purpose – The purpose of this paper is to present an efficient return mapping algorithm for elastoplastic constitutive problems of ductile metals with an exact closed form solution of the local constitutive problem in the small strain regime. A Newton Raphson...

... Finite element method Strain Elasticity Viscoelasticity Elastoplasticity The computational modelling of non‐linear solid mechanics problems governed by inelastic material behaviour, often requires use of sophisticated constitutive material models formulated in the finite strain regime...

...Scott W. Sloan; Andrew J. Abbo; Daichao Sheng Effective explicit algorithms for integrating complex elastoplastic constitutive models, such as those belonging to the Cam clay family, are described. These automatically divide the applied strain increment into subincrements using an estimate...

... bending element includes both transverse normal and shear deformation so that the hydrostatic stress and deviatotic stresses can be better represented. Algorithms Elastoplasticity Plate structures Deformation Plate bending Void growth and nucleation can have a significant effect...

...) criteria form special cases of the Hoffman criterion. In its isotropic form the criterion can be described using two parameters, viz. uniaxial tensile and compressive yield strengths. Elastoplastic constitutive laws are frequently used in conjunction with the finite element method for analysis...

...S.T. Lie; K. Xu; Q. Liu In this paper, an interpolation method called the quasi‐higher order element method (QHOEM) is proposed for solving elastoplastic problems using symmetric Galerkin boundary element method (SGBEM). At the initial stage, it uses higher order elements to interpolate...

...Pankaj; Mohammed Arif; Surendra K. Kaushik Two anisotropic yield criteria, that employ quadratic stress functions and have been extensively used for the elastoplastic analysis of composite materials, are considered. Proposed by Hoffman and by Sun, both these criteria have been formulated using nine...

...J.J. Anza; M.A. Gutierrez The numerical simulation of metal forming processes follows a highly non‐linear analysis where general aspects such as elastoplasticity, finite deformation and contact mechanics are combined. Approximated solutions obtained by finite element techniques require strong...

...A.P. Cisilino; M.H. Aliabadi An efficient boundary element method (BEM) formulation for three‐dimensional elastoplasticity is presented in this paper. The BEM formulation for nonlinear problems requires discretization of the surface as well as part of the volume. In this paper nine‐noded...

... P₄, P₅, P₆ (Figure 2). The equilibrium of the workpiece is expressed in a weak form using the principle of virtual work (PVW): Bending behaviour Elastoplasticity Metal forming Shells The production of high quality products in a short period of time and at a low...

...C.P. Providakis; G. Toungelidis A boundary element method for solving problems dealing with the dynamic analysis of thin elastoplastic flexural plates of arbitrary geometry and conditions inside the domain is proposed here. All possible edge boundary conditions, with any interior support conditions...

...Tomazˇ Rojc A mixed approach to large strain elastoplastic problems is presented in a somewhat different way to that usually used within the context of the additive split of the rate of deformation tensor into an elastic and plastic part. A non‐linear extended mixed variational equation, in which...

... prove the accuracy of the proposed approach in solving stamping problems. © MCB UP Limited 1996 Anisotropy Elastoplasticity Sheet metal Shell finite element Finite element modelling of the stamping of anisotropic sheet metals M.L. Boubakar, L. Boulmane and J.C. Gelin Université de...

... Elastoplasticity Finite element method Metal forming Simulation Static‐explicit methodology Static-explicit elastic plastic finite element simulation and virtual manufacturing of sheet metal forming Eiji Nakamachi Department of Mechanical Engineering, Osaka Institute of Technology, Osaka, Japan Virtual...

... and compares this with the experimental results. Confirms the applicability of the newly developed finite‐element code to the quasi‐static forming process. © MCB UP Limited 1996 Dynamic‐explicit methodology Elastoplasticity Finite element method Metal forming Quasi‐static process Dynamic...

...Pankaj; Khalid Moin Exact solutions for Mohr Coulomb elastoplasticity are developed. Using these solutions an exact stress increment for a given finite strain increment can be computed. The developed solutions are valid for perfect and linear hardening/softening plasticity using isotropic work...

...A. Corigliano The finite element quasi‐static analysis of elastoplastic systems is studied by making use of a generalized variable approach for the spatial discretization and a generalized mid‐point rule for the time integration. Both the classical form of the constitutive law and the convex...