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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

2300-2305

DOI:

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

Citation:

R. Zhang and Z. P. Tang, "Simulation of Multiscale Time and Space in Fracture Process of Three-Point-Bending Concrete Beam with Offset Notch", Advanced Materials Research, Vols. 189-193, pp. 2300-2305, 2011

Online since:

February 2011

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$35.00

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