|Table of Contents|

A microstructure-based numerical simulation of semi-circular bending test of asphalt concrete(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年04期
Page:
18-22
Research Field:
Publishing date:
2010-08-20

Info

Title:
A microstructure-based numerical simulation of semi-circular bending test of asphalt concrete
Author(s):
LI Xiao-jun;  FENG Fan
School of Geological and Environmental Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, China
Keywords:
road engineering;  asphalt concrete;  semi-circular bending test;  CT;  FEM
PACS:
U443.33
DOI:
-
Abstract:
Digital image processing technique was used to convert computerized tomography(CT)image into a digital form that can be incorporated into finite element modeling. An actual microstructure-based numerical FEM model was adopted to simulated semi-circular bending test with considering the influence of in homogeneities.Three material phases(aggregates,voids and sand mastic)of hot asphalt mixture were modeled with finite elements.The mechanical properties of hot asphalt mixture can be evaluated with the mechanical input of aggregates and sand mastic. The numerical simulation results show that in homogeneities have a large impact on mechanical properties of asphalt concrete. 1 tab, 6 figs, 15 refs.

References:

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Last Update: 2010-08-20