3D meso-scale fracture modelling and validation of concrete based on in-situ X-ray Computed Tomography images using damage plasticity model
TLDR
In this paper, a 3D meso-scale finite element model of concrete based on in-situ X-ray Computed Tomography (XCT) images is developed and validated.About:
This article is published in International Journal of Solids and Structures.The article was published on 2015-08-15 and is currently open access. It has received 293 citations till now.read more
Citations
More filters
Journal ArticleDOI
A review on pore structure characterization in tight sandstones
Jin Lai,Guiwen Wang,Ziyuan Wang,Jing Chen,Xiaojiao Pang,Shuchen Wang,Zhenglong Zhou,Zhibo He,Ziqiang Qin,Xuqiang Fan +9 more
TL;DR: In this paper, the pore size distribution and 3D pore connectivity are evaluated from NMR and XCT analysis, and the NMR spectrum is also linked to the macroscopic performance, and pore network is determined from N 2 GA, and fractal theory is introduced to explain the irregularity and heterogeneity of pore throat structure characteristics.
Journal ArticleDOI
A review of X-ray computed tomography of concrete and asphalt construction materials
TL;DR: This review summarises the successful applications of this technique to concrete and asphalt materials to date and provides insight into the current capabilities and state of the art of non-destructive X-ray micro computed tomography.
Journal ArticleDOI
Pore characteristics in one-part mix geopolymers foamed by H2O2: The impact of mix design
Ailar Hajimohammadi,Tuan Ngo,Priyan Mendis,Tuan Nguyen,Alireza Kashani,Jannie S.J. van Deventer +5 more
TL;DR: In this paper, the effect of mix design on both reactions is discussed and correlated with the properties of the resulting geopolymer foams, and the mesoscale-based finite element analysis is performed to create a predictive tool for correlating the pore size distribution with their mechanical properties.
Journal ArticleDOI
Monte Carlo simulations of meso-scale dynamic compressive behavior of concrete based on X-ray computed tomography images
TL;DR: In this article, the authors investigated the dynamic damage and fracture behavior of concrete under compression with strain rate up to 100 ǫ s−1 by Monte Carlo simulations (MCSs) of realistic meso-scale models based on high-resolution micro-scale X-ray computed tomography (XCT) images.
Journal ArticleDOI
Monitoring reinforcement corrosion and corrosion-induced cracking by X-ray microcomputed tomography method
TL;DR: X-ray microcomputed tomography has been used to trace steel corrosion and corrosion-induced cracking in cement paste as discussed by the authors, which can track the time-dependent development of steel corrosion, as well as the subsequent initiation and propagation of corrosion induced cracks.
References
More filters
Journal ArticleDOI
A plastic-damage model for concrete
TL;DR: In this article, a constitutive model based on an internal variable-formulation of plasticity theory for the non-linear analysis of concrete is presented, which uses a new yield criterion which matches experimental data quite well and it accounts for both elastic and plastic stiffness degradations effects.
Journal ArticleDOI
Plastic-Damage Model for Cyclic Loading of Concrete Structures
Jeeho Lee,Gregory L. Fenves +1 more
TL;DR: In this paper, a new plastic-damage model for concrete subjected to cyclic loading is developed using the concepts of fracture-energy-based damage and stiffness degradation in continuum damage mechanics.
Journal ArticleDOI
The Interfacial Transition Zone (ITZ) Between Cement Paste and Aggregate in Concrete
TL;DR: In this article, the authors describe the so called interfacial transition zone (ITZ) in concrete as the region of the cement paste around the aggregate particles, which is perturbed by the presence of the aggregate, and show that the higher porosity present initially is significantly diminished by the migration of ions during hydration.
Journal ArticleDOI
Fracture simulations of concrete using lattice models : computational aspects
TL;DR: In this paper, the influence of lattice element type and lattice orientation on the fracture pattern was investigated by simulating a shear loading experiment on a concrete plate, and the effect of element resolution on fracture results was also investigated.
Journal ArticleDOI
Three-dimensional mathematical analysis of particle shape using X-ray tomography and spherical harmonics: Application to aggregates used in concrete
TL;DR: In this article, a mathematical procedure using spherical harmonic functions is described to characterize concrete aggregate particles and other particles of the same nature in 3D X-ray tomography images, and three main consequences of this procedure are mathematical classification of the shape of aggregates from different sources, comparison of composite performance properties to precise morphological aspects of particles, and incorporation of random particles into manyparticle computational models.
Related Papers (5)
Meso-scale computational modeling of the plastic-damage response of cementitious composites
Mesoscale models for concrete: homogenisation and damage behaviour
Peter Wriggers,S. O. Moftah +1 more