|Table of Contents|

Generating Method of Random Polygon Aggregate in Mesoscopic Simulation of Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2009年04期
Page:
59-65
Research Field:
Publishing date:
2009-12-20

Info

Title:
Generating Method of Random Polygon Aggregate in Mesoscopic Simulation of Concrete
Author(s):
HOU Yu-xing;  WANG Li-cheng
School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
Keywords:
concrete;  random polygon aggregate;  2-D model;  numerical simulation;  mesoscopic analysis;  failure mode
PACS:
TU528
DOI:
-
Abstract:
An improved generating method of random concrete aggregates in 2-D area based on area criteria and generating pattern was proposed. Through improving aggregate extension condition and limiting the condition of special point's location, the generation efficiency of random polygon aggregates was raised, and the computational program was subsequently improved. Finally, through comparing the calculation examples under axial tension and compression, the influences of mechanical properties on concrete specimens under uniaxial tension and compression were analyzed by comparing the different shapes of aggregates, such as circular aggregate and polygon aggregate. The result shows that the concrete specimens with circular aggregates have slightly higher strength than that of polygon aggregates, which also indicates that shape of aggregate has little effect on the tensile and compressive mechanical properties of concrete specimens in terms of the numerical simulation results.

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Last Update: 2009-12-20