scholarly journals Homogenization coarse graining (HCG) of the lattice discrete particle model (LDPM) for the analysis of reinforced concrete structures

2018 ◽  
Vol 197 ◽  
pp. 259-277 ◽  
Author(s):  
Erol Lale ◽  
Roozbeh Rezakhani ◽  
Mohammed Alnaggar ◽  
Gianluca Cusatis
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structures ◽  
Coarse Graining ◽  
Particle Model ◽  
Reinforced Concrete Structures ◽  
Discrete Particle ◽  
Discrete Particle Model ◽  
Lattice Discrete Particle Model

Simulation of Reinforced Concrete Structures Under Blast and Penetration Through Lattice Discrete Particle Modeling

2007 ◽  
Author(s):  
Gianluca Cusatis ◽  
Daniele Pelessone ◽  
Andrea Mencarelli ◽  
James T. Baylot
Keyword(s):  
Reinforced Concrete ◽  
Three Dimensional ◽  
Concrete Slabs ◽  
Particle Model ◽  
Discrete Particle ◽  
Reinforced Concrete Slabs ◽  
Particle Modeling ◽  
Discrete Particle Model ◽  
Level Model ◽  
Lattice Discrete Particle Model

In this study, the Lattice Discrete Particle Model (LDPM), a recently developed three-dimensional meso-level model for concrete, is used to simulate the behavior of reinforced concrete under severe loading conditions. LDPM simulates concrete through an assemblage of particles (coarse aggregate pieces) connected through a lattice mesh. In order to simulate steel reinforcement, a mesh of plastic beams is embedded in the lattice system. Nonlinear concrete-reinforcement bond is also included in the formulation. The effectiveness of the approach is demonstrated through the simulation of projectile penetration into reinforced concrete slabs and blast spallation of dividing walls.

Robust probabilistic calibration of a stochastic lattice discrete particle model for concrete

2021 ◽  
Vol 236 ◽  
pp. 112000
Author(s):  
Eliška Janouchová ◽  
Anna Kučerová ◽  
Jan Sýkora ◽  
Jan Vorel ◽  
Roman Wan-Wendner
Keyword(s):  
Particle Model ◽  
Discrete Particle ◽  
Discrete Particle Model ◽  
Lattice Discrete Particle Model

Meso-Scale Simulation of Concrete: Blast and Penetration Effects and AAR Degradation

2011 ◽  
Vol 82 ◽  
pp. 75-80 ◽  
Author(s):  
Gianluca Cusatis ◽  
Giovanni Di Luzio ◽  
Luigi Cedolin
Keyword(s):  
Laboratory Tests ◽  
Experimental Tests ◽  
Rensselaer Polytechnic Institute ◽  
Particle Model ◽  
Concrete Dam ◽  
Air Blast ◽  
Discrete Particle ◽  
Discrete Particle Model ◽  
Lattice Discrete Particle Model ◽  
Meso Scale

The study of concrete dam subjected to extreme loading conditions require theadoption of accurate constitutive equations. In this paper some recent results on the meso-scalesimulation of blast and penetration e ects on concrete will be discussed. The adopted meso-scale constitutive equation is the so-called Lattice Discrete Particle Model (LDPM) recentlyformulated at Rensselaer Polytechnic Institute. LDPM can accurately describe the macroscopicbehavior of quasi-brittle materials, and especially concrete, during elastic, fracturing, softening,and hardening regimes. Tensile dominated experimental tests under both dynamic conditionswere numerically simulated. After presenting examples of simulations relevant to quasi-staticand dynamic concrete behavior, LDPM simulation of the e ect of air blast pressure, on concretewill be discussed. Finally, the problem of the extrapolations of laboratory tests to actual in-situconditions is also presented.

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