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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.8 P.555-562


Numerical evaluation of sample size effect on the stress-strain behavior of geotextile-reinforced sand

Author(s):  I. Hosseinpour, S. H. Mirmoradi, A. Barari, M. Omidvar

Affiliation(s):  Department of Civil Engineering, University of Mazandaran, Babol, Iran, Department of Civil Engineering, Aalborg University, Aalborg, Denmark, Engineering Faculty, Golestan University, Gorgan, Iran

Corresponding email(s):   i.hosseinpour@gmail.com

Key Words:  Reinforced sand, Geotextile, Peak strength, Mohr-Coulomb, Size effect

I. Hosseinpour, S. H. Mirmoradi, A. Barari, M. Omidvar. Numerical evaluation of sample size effect on the stress-strain behavior of geotextile-reinforced sand[J]. Journal of Zhejiang University Science A, 2010, 11(8): 555-562.

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publisher="Zhejiang University Press & Springer",

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%T Numerical evaluation of sample size effect on the stress-strain behavior of geotextile-reinforced sand
%A I. Hosseinpour
%A S. H. Mirmoradi
%A A. Barari
%A M. Omidvar
%J Journal of Zhejiang University SCIENCE A
%V 11
%N 8
%P 555-562
%@ 1673-565X
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0900535

T1 - Numerical evaluation of sample size effect on the stress-strain behavior of geotextile-reinforced sand
A1 - I. Hosseinpour
A1 - S. H. Mirmoradi
A1 - A. Barari
A1 - M. Omidvar
J0 - Journal of Zhejiang University Science A
VL - 11
IS - 8
SP - 555
EP - 562
%@ 1673-565X
Y1 - 2010
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0900535

This paper studies the effect of sample size on the stress-strain behavior and strength characteristics of geotextile reinforced sand using the finite element numerical analysis. The effect of sample size was investigated by studying the effects of varying the number of geotextile layers, the confining pressure and the type of geotextile. Modeling was performed on samples with five different diameters: 38, 100, 200, 500 and 600 mm. The elastic-plastic mohr-Coulomb model was used to simulate sand behavior. Results showed that small-sized samples show higher values of peak strength and higher axial strain at failure in comparison with large-sized samples. The size effect on the behavior of samples became further apparent when the number of geotextile layers was increased or the confining pressure was decreased. In addition, the results indicated that the magnitude of the size effect on the mechanical behavior of reinforced sand decreases with an increase in the sample size.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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