Concrete can be considered as a heterogeneous material at mesoscale comprising of several constituents such as aggregates, mortar and Interfacial Transition Zone (ITZ) …
For a single batch material, time intervals and nozzle standoff distances between two subsequent layers are two critical printing parameters that influence the mechanical …
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 …
DO Potyondy, PA Cundall - International journal of rock mechanics and …, 2004 - Elsevier
A numerical model for rock is proposed in which the rock is represented by a dense packing of non-uniform-sized circular or spherical particles that are bonded together at their contact …
There have been abundant experimental studies exploring ultra-high-performance concrete (UHPC) in recent years. However, the relationships between the engineering properties of …
J Peng, LNY Wong, CI Teh - Journal of Geophysical Research …, 2017 - Wiley Online Library
This study numerically investigates the influence of material heterogeneity on the strength and deformation behavior and the associated microcracking process of a felsic crystalline …
SM Kim, RKA Al-Rub - Cement and Concrete Research, 2011 - Elsevier
Concrete is considered as a 3-phase composite material; mortar matrix, aggregates, and interfacial transmission zone (ITZ). In order to investigate the contribution of each phase to …
P Wriggers, SO Moftah - Finite elements in analysis and design, 2006 - Elsevier
In this paper three-dimensional geometrical models for concrete are generated taking the random structure of aggregates at the mesoscopic level into consideration. The generation …