Simulation of Multiscale Time and Space in Fracture Process of Three-Point-Bending Concrete Beam with Offset Notch

Rui Zhang; Zhi Ping Tang

doi:10.4028/www.scientific.net/AMR.189-193.2300

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Simulation of Multiscale Time and Space in...

Simulation of Multiscale Time and Space in Fracture Process of Three-Point-Bending Concrete Beam with Offset Notch

Abstract:

In order to accurately analyze the dynamic damage process of three-point-bending concrete beam with offset notch, the multiscale numerical model of time and space by coupling Discrete Element Method (DEM) and Finite Element Method (FEM) of three-point-bending concrete beam with offset notch was established. Using the multiscale numerical model of three-point-bending concrete beam, the generating and the extending processes and rules of cracks in concrete beam under condition of different offset distances of notch were analyzed at macro- and meso-levels. The simulated results are in accordant with the experimental ones. Comparing the computation time of the multiscale model and that of the DEM model in the example of three-point-bending concrete beam, the former accomplished the heterogeneous mesoscopic simulations of the latter, at the same time, the former was much more efficient than the latter.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

2300-2305

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.2300

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Online since:

February 2011

Authors:

Rui Zhang, Zhi Ping Tang

Keywords:

Coupling DEM, Coupling FEM, Crack Extending, Multiscale Time and Space, Three-Point-Bending Concrete Beam with Offset Notch

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