Sfoglia per Soggetto "Plastic flow"
Items 1-4 di 4
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Deformation vs. flow and wavelet-based models of gradient plasticity: Examples of axial symmetry
(2006)The modest goal of this article - the first in a series of three dedicated to Kirk Valanis - is to discuss and compare (in terms of their constitutive and variational formulation, boundary conditions and size-dependent ... -
Finite element implementation of gradient plasticity models part I: Gradient-dependent yield functions
(1998)Theories with intrinsic or material length scales find applications in the modeling of size-dependent phenomena such as, for example, the localization of plastic flow into shear bands. In gradient-type plasticity theories, ... -
Finite element implementation of gradient plasticity models Part II: Gradient-dependent evolution equations
(1998)The variational formulation and finite element implementation of a class of plasticity models with gradient-dependent yield functions is covered in detail in Part I. In this sequel, attention is focussed upon the finite ... -
A methodology for the estimation of the effective yield function of isotropic composites
(2016)In this work we derive a general model for N-phase isotropic, incompressible, rate-independent elasto-plastic materials at finite strains. The model is based on the nonlinear homogenization variational (or modified secant) ...