TY - JOUR
T1 - Numerical simulation of high-strength concrete under uniaxial/triaxial compression based on meso-scale model
AU - Zhang, X. Y.
AU - Wu, H. J.
AU - Li, J. Z.
AU - Pi, A. G.
AU - Huang, F. L.
N1 - Publisher Copyright:
© 2020 IOP Publishing Ltd. All rights reserved.
PY - 2020/7/7
Y1 - 2020/7/7
N2 - According to the meso-scale characteristics and structural composition of concrete, a three-dimensional finite element mesoscopic model is established based on the random aggregate generation method and the background grid projection method. Based on the improved Ottosen yield conditions, the stress-strain curves and damage parameter data of concrete are calculated, and the CDP model is applied to carry out numerical simulation under static uniaxial and triaxial compression conditions. The results show that the stress-strain curve obtained from the numerical simulation is basically consistent with the experiment, and the crack development along the ITZ can be observed in the meso-scale model, which is consistent with the experimental details. It is proved that the modeling method and parameter calculation method in this paper is accuracy and have good applicability.
AB - According to the meso-scale characteristics and structural composition of concrete, a three-dimensional finite element mesoscopic model is established based on the random aggregate generation method and the background grid projection method. Based on the improved Ottosen yield conditions, the stress-strain curves and damage parameter data of concrete are calculated, and the CDP model is applied to carry out numerical simulation under static uniaxial and triaxial compression conditions. The results show that the stress-strain curve obtained from the numerical simulation is basically consistent with the experiment, and the crack development along the ITZ can be observed in the meso-scale model, which is consistent with the experimental details. It is proved that the modeling method and parameter calculation method in this paper is accuracy and have good applicability.
UR - http://www.scopus.com/inward/record.url?scp=85089156599&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1507/8/082053
DO - 10.1088/1742-6596/1507/8/082053
M3 - Conference article
AN - SCOPUS:85089156599
SN - 1742-6588
VL - 1507
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 8
M1 - 082053
T2 - 2nd Spring International Conference on Defence Technology, ICDT 2020
Y2 - 20 April 2020 through 24 April 2020
ER -