Numeric Analysis of Size Effect on Mesol Concrete Random Aggregate Model

Abstract:

Article Preview

In order to research that statics properties of concrete cylinder sample are influenced by micro-concrete material heterogeneity, by random aggregate models generated by different random number were established. By fixed aggregate size and constantly changing of the sample size, the concrete numerical model was simulated and Strength change of concrete samples was analyzed .So that strength influence of the aggregate location of the concrete random sample was study. Calculation shows that: the strength of concrete has been little effect by the aggregate random location, the size effect on concrete has been changed regularly, with the size effect ratio coefficient of aggregate and sample gradually increasing, the error square sum of strain was reduced and the brittlness of the samples becomes obvious.

Info:

Periodical:

Edited by:

Chunliang Zhang and Paul P. Lin

Pages:

1780-1784

Citation:

X. Y. Liang and F. N. Dang, "Numeric Analysis of Size Effect on Mesol Concrete Random Aggregate Model", Applied Mechanics and Materials, Vols. 226-228, pp. 1780-1784, 2012

Online since:

November 2012

Export:

Price:

$38.00

[1] J. Planas, G.V. Guinea,M. Eliees. Generalized Size Effect Equation for Quasi-brittle Materials. Materials and Struetures. 1997, 20(50): 671-687.

DOI: https://doi.org/10.1111/j.1460-2695.1997.tb00300.x

[2] Z. P. Bazant. size effete on struetural strength: areview. Arehive of Applied Meehanies, 1999(69).

[3] P. Bazant, Er一PingChen. Sealing of Strueture Failure. Alneriean Society ofMeehanieal Engineers. Vol. 50. 1997(10): 593-627.

[4] DANG Fa-ning , TIAN Wei, HAN Wen-tao, CHEN Hou-qun. 3-D Numerical of Simulation of Concrete Failure Process Based on Meso-mechanics Damage and CT Experiment Verification[J]. SHUILI XUEBAO, 2006, 6: 674-680.

[5] ZHOU Shang-zhi, DANE Faning, CHEN Hou-qun, DING Wei-hua. Breakage Meso-Mechanism of Concrete Based on CT Test under Uniaxial Compression[J], Journal of Xi' an University of Technology, 2006. 22(4): 355-360.

[6] MA Huai-fa, CHEN Hou-qun , LI Bao-kun. Meso-structure numerical simulation of concrete speci mens[J], SHUILI XUEBAO, 2004, 10: 27-35.

[7] CHEN Yong-qing, ZHENG Xiao-ping, YAO Zhen-han. Numerical simulation of failure process in 3Dheterogeneous brittle materials[J]. Atca Mechanica Sinica, 2002, 34(3): 351-361.