Over the last three decades, a number of researchers have used the gradient-enhanced
plasticity theory to model the microstructural material behavior, which is not able to be …

Under small strains and rotations, we apply a phenomenological higher-order theory of
distortion gradient plasticity to the torsion problem, here assumed as a paradigmatic …

Modeling of plasticity is often hampered by the difficulty in accurately characterizing
dislocation density on the microscale for real samples. It is particularly difficult to resolve …

A novel general purpose Finite Element framework is presented to study small-scale metal
plasticity. A distinct feature of the adopted distortion gradient plasticity formulation, with …

Plasticity in heterogeneous metallic materials of small volumes is governed by the
interactions of the dislocations in the bulk and at the interfaces. The temperature distribution …

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

Due to material anisotropy, the behavior of a granular material is generally directional-
dependent. The directions of stress and strain increment have been observed non …

In the small deformation range, we consider and discuss the phenomenological (or
isotropic)“higher-order” theory of strain gradient plasticity put forward in Section 12 of Gurtin …

Due to its superior modelling capabilities, there is an increasing interest in distortion
gradient plasticity theory, where the role of the plastic spin is accounted for in the free energy …

In the present work, we combine Mindlin's strain gradient elasticity theory and Gudmundson–
Gurtin–Anand strain gradient plasticity theory to form a unified framework. The gradient …