101 citations · 230 across the 6 of their papers we have counts for
8 papers
Meso-scale Finite Element Modeling of Alkali-Silica-Reaction
Roozbeh Rezakhani, Emil Gallyamov, Jean-François Molinari
The alkali-silica reaction (ASR) in concrete is a chemical reaction, which produces an expansive product, generally called ''ASR gel'', and causes cracking and damage in concrete o…
Multi-scale modelling of concrete structures affected by alkali-silica reaction: Coupling the mesoscopic damage evolution and the macroscopic concrete deterioration
Emil R. Gallyamov, Aurelia Isabel Cuba Ramos, Mauro Corrado +2
A finite-element approach based on the first-order FE 2 homogenisation technique is formulated to analyse the alkali-silica reaction-induced damage in concrete structures, by linki…
Finite element modeling of dynamic frictional rupture with rate and state friction
Roozbeh Rezakhani, Fabian Barras, Michael Brun +1
Numerous laboratory experiments have demonstrated the dependence of the friction coefficient on the interfacial slip rate and the contact history, a behavior generically called rat…
Homogenization Coarse Graining (HCG) of the Lattice Discrete Particle Model (LDPM) for the Analysis of Reinforced Concrete Structures
Erol Lale, Roozbeh Rezakhani, Mohammed Alnaggar +1
In this study, a coarse-graining framework for discrete models is formulated on the basis of multiscale homogenization. The discrete model considered in this paper is the Lattice D…
Adaptive Multiscale Homogenization of the Lattice Discrete Particle Model for the Analysis of Damage and Fracture in Concrete
Roozbeh Rezakhani, Xinwei Zhou, Gianluca Cusatis
This paper presents a new adaptive multiscale homogenization scheme for the simulation of damage and fracture in concrete structures. A two-scale homogenization method, coupling me…
Discontinuous Cell Method (DCM) for the Simulation of Cohesive Fracture and Fragmentation of Continuous Media
Gianluca Cusatis, Roozbeh Rezakhani, Edward A. Schauffert
In this paper, the Discontinuous Cell Method (DCM) is formulated with the objective of simulating cohesive fracture propagation and fragmentation in homogeneous solids without issu…
A multiscale framework for the simulation of the anisotropic mechanical behavior of shale
Weixin Li, Roozbeh Rezakhani, Congrui Jin +2
Shale, like many other sedimentary rocks, is typically heterogeneous, anisotropic, and is characterized by partial alignment of anisotropic clay minerals and naturally formed beddi…
Asymptotic Expansion Homogenization of Discrete Fine-Scale Models with Rotational Degrees of Freedom for the Simulation of Quasi-Brittle Materials
Roozbeh Rezakhani, Gianluca Cusatis
Discrete fine-scale models, in the form of either particle or lattice models, have been formulated successfully to simulate the behavior of quasi-brittle materials whose mechanical…