Numerical simulation of high-strength concrete under uniaxial/triaxial compression based on meso-scale model

科研成果: 期刊稿件会议文章同行评审

摘要

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.

源语言英语
文章编号082053
期刊Journal of Physics: Conference Series
1507
8
DOI
出版状态已出版 - 7 7月 2020
活动2nd Spring International Conference on Defence Technology, ICDT 2020 - Nanjing, 中国
期限: 20 4月 202024 4月 2020

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