Lattice Discrete Particle Model for Fiber reinforced concrete (LDPM-F) with application to the numerical simulation of armoring systems

Author(s):  
G Cusatis ◽  
E Schauffert ◽  
D Pelessone ◽  
J O’Daniel ◽  
P Marangi ◽  
...  
Author(s):  
Gianluca Cusatis ◽  
Daniele Pelessone ◽  
Andrea Mencarelli ◽  
James T. Baylot

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.


2021 ◽  
Vol 11 (3) ◽  
pp. 1112
Author(s):  
Nikita Belyakov ◽  
Olga Smirnova ◽  
Aleksandr Alekseev ◽  
Hongbo Tan

The problem of damage accumulation in fiber-reinforced concrete to structures supporting underground workings and tunnel linings against dynamic loading is insufficiently studied. The mechanical properties were determined and the mechanism of destruction of fiber-reinforced concrete with different reinforcement parameters is described. The parameters of the Concrete Damaged Plasticity model for fiber-reinforced concrete at different reinforcement properties are based on the results of lab experiments. Numerical simulation of the composite concrete was performed in the Simulia Abaqus software package (Dassault Systemes, Vélizy-Villacoublay, France). Modeling of tunnel lining based on fiber-reinforced concrete was performed under seismic loading.


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

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