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 …

Despite tremendous advances made in fracture mechanics of concrete in recent years, very
little information has been available on the nature of fracture processes and on reliable test …

The paper analyzes nonlocal constitutive models used in simulations of damage and
fracture processes of quasibrittle materials. A number of nonlocal formulations found in the …

The instabilities of soil specimens in laboratory or soil made geotechnical structures in field
are always numerically simulated by the classical continuum mechanics-based constitutive …

A transient-gradient enhanced damage model has been developed for the numerical
modelling of the damage and fracture process within a continuum damage mechanics …

An improved gradient-enhanced approach for softening elasto-plasticity is proposed, which
in essence is fully nonlocal, ie an equivalent integral nonlocal format exists. The method …

The enhanced gradient plasticity theories formulate a constitutive framework on the
continuum level that is used to bridge the gap between the micromechanical plasticity and …

The definition and magnitude of the intrinsic length scale are keys to the development of the
gradient plasticity theory that incorporates size effects. However, a fixed value of the material …

This paper is the first in a series of two that focus on gradient elasticity models derived from a
discrete microstructure. In this first paper, a new continualization method is proposed in …

Many plastic second gradient models have been developed in the last 10 years. However
some plastic second gradient models are nonlocal ones. This paper is an attempt to give a …