The physical basis and the magnitude of the material length scale in theories of strain
gradient plasticity are crucial for accounting for size effects in the plastic behavior of metals …

In this paper, we propose a new numerical approach abbreviated as Cos-SDA for analyzing
strain localization problems of geomaterials. The Cos-SDA is achieved by implanting the …

Measures of rates of elastic incompatibilities are developed within an Eulerian framework for
finite-deformation response of anisotropic elastic–inelastic materials. Such framework relies …

We consider work-conjugate Gradient Plasticity (GP) theories involving both energetic and
dissipative higher-order contributions. We show that the conceptually most straightforward …

We propose a plastic potential for higher-order (HO) phenomenological strain gradient
plasticity (SGP), predicting reliable size-dependent response for general loading histories …

We focus on Gurtin's gradient plasticity (GP) theory adopting Nye's tensor as primal higher-
order (HO) kinematic variable, contributing to the free energy. In the absence of other HO …

We propose a novel variational framework to regularize softening plasticity problems.
Specifically, we modify the plastic dissipation potential term by adding a contribution …

This work considers a recently developed finite-deformation elastoplasticity theory that
assumes distinct tensorial fields describing macro-plasticity and micro-plasticity, where the …

A unified classification framework for models of extended plasticity is presented. The models
include well known micromorphic and strain-gradient plasticity formulations. A unified …

The phenomenological flow theory of higher-order strain gradient plasticity proposed by
Fleck and Hutchinson (J. Mech. Phys. Solids, 2001) and then improved by Fleck and Willis …