Discrete models of solids have been motivated, in large part, by the discontinuous and
heterogeneous nature of material structure and its breakdown under loading. The …

In the past few decades, extensive research on concrete modeling to predict behavior, crack
propagation, microcrack coalescence by utilizing different approaches (fracture mechanics …

Great progresses have been made in static size effect of concrete, while almost no efforts
have been conducted in dynamic size effect of concrete. The macro nonlinearity and size …

The paper shows three-dimensional (3D) numerical mesoscopic results on progressive
concrete fracture at aggregate level in a notched concrete beam under bending. A classical …

The realization of approximate practical aggregate models is a crucial link to the mesoscopic
mechanical analysis for fully-graded concrete. This study systematically presents the …

Concrete is non-homogeneous and is composed of three main constituent phases from a
mesoscopic viewpoint, namely aggregates, mortar matrix, and interface transition zone (ITZ) …

This paper presents the lattice element models, as a class of discrete models, in which the
structural solid is represented as an assembly of one-dimensional elements. This idea …

The article deals with two-dimensional mesoscopic numerical results of fracture in concrete
at the aggregate scale in a beam with a notch under bending. The focus was on the effects …

This paper investigates the influence of aggregate shape on the diffusivity of mortar in three
dimensions by random packing models of ellipsoidal and convex polyhedral particles. From …

In this paper, a new phase field method is proposed for modelling of progressive failure in
multi-phase materials. Material properties of the interface between inclusion and matrix are …