[HTML][HTML] Discrete mechanical models of concrete fracture

JE Bolander, J Eliáš, G Cusatis, K Nagai - Engineering Fracture Mechanics, 2021 - Elsevier
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 …

Mesoscale modelling of concrete–a review of geometry generation, placing algorithms, constitutive relations and applications

PSM Thilakarathna, KSK Baduge, P Mendis… - Engineering Fracture …, 2020 - Elsevier
Concrete can be considered as a heterogeneous material at mesoscale comprising of
several constituents such as aggregates, mortar and Interfacial Transition Zone (ITZ) …

Effect of printing parameters on interlayer bond strength of 3D printed limestone-calcined clay-based cementitious materials: An experimental and numerical study

Y Chen, K Jansen, H Zhang, CR Rodriguez… - … and Building Materials, 2020 - Elsevier
For a single batch material, time intervals and nozzle standoff distances between two
subsequent layers are two critical printing parameters that influence the mechanical …

[HTML][HTML] 3D meso-scale fracture modelling and validation of concrete based on in-situ X-ray Computed Tomography images using damage plasticity model

Y Huang, Z Yang, W Ren, G Liu, C Zhang - International Journal of Solids …, 2015 - Elsevier
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 …

混凝土试件细观结构的数值模拟

马怀发, 陈厚群, 黎保琨 - 水利学报, 2004 - jhe.ches.org.cn
本文将常用混凝土级配曲线与三维富勒级配曲线作了对比分析, 从而为基于瓦拉文公式的随机骨
料模型对试件内截面进行细观结构的数值模拟提供了依据. 在此基础上, 采用双折线损伤演化 …

A bonded-particle model for rock

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 …

Predicting ultra-high-performance concrete compressive strength using tabular generative adversarial networks

A Marani, A Jamali, ML Nehdi - Materials, 2020 - mdpi.com
There have been abundant experimental studies exploring ultra-high-performance concrete
(UHPC) in recent years. However, the relationships between the engineering properties of …

Influence of grain size heterogeneity on strength and microcracking behavior of crystalline rocks

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 …

Meso-scale computational modeling of the plastic-damage response of cementitious composites

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 …

Mesoscale models for concrete: Homogenisation and damage behaviour

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 …