In the failure of quasi-brittle materials such as rocks, microstuctural damage always
precedes macroscopic fracture and manifests itself in the formation of fracture process zones …

Ultra-high performance concrete (UHPC) developed rapidly in research and commercial use
during the recent decade. Significant progress has been achieved in its material science …

Abstract Three-dimensional (3D) meso-scale finite element models of concrete based on in-
situ X-ray Computed Tomography (XCT) images are developed and validated in this study …

Concrete can be considered as a heterogeneous material at mesoscale comprising of
several constituents such as aggregates, mortar and Interfacial Transition Zone (ITZ) …

In this paper, a mesoscale model of concrete is presented, which considers particles, matrix
material and the interfacial transition zone (ITZ) as separate constituents. Particles are …

Nonlocal integral and/or gradient enhancements are widely used to resolve the mesh
dependency issue with standard continuum damage models. However, it is reported that …

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 …

We analyze the dynamic failure of concrete using two and three-dimensional finite-element
models. In particular, the current results extend, using a unique parallel computing …

The size effect on the fracture process zone in notched and unnotched three point bending
tests of concrete beams is analysed by a meso-scale approach. Concrete is modelled at the …

Concrete is a multi-phase heterogeneous material in which the interfacial transition zone
(ITZ) between aggregates and mortar significantly affects the cracking behaviour of concrete …