AN ELASTIC-PLASTIC DAMAGE CONSTITUTIVE MODEL OF CONCRETE UNDER CYCLIC LOADING AND ITS NUMERICAL IMPLEMENTATION

被引：0

作者：

Zhang L. ^{[1
]}

Zhao L.-H. ^{[1
]}

Liu Z. ^{[2
]}

Mao J. ^{[1
]}

机构：

[1] College of Water Conservancy and Hydropower Engineering, Hohai University, Jiangsu, Nanjing

[2] Jiangxi Academy of Water Science and Engineering, Jiangxi, Nanchang

来源：

Gongcheng Lixue/Engineering Mechanics | 2023年 / 40卷 / 04期

关键词：

concrete; cyclic loading; elastic-plastic damage; equivalent strain; numerical implementation;

D O I：

10.6052/j.issn.1000-4750.2021.10.0786

中图分类号：

学科分类号：

摘要：

An elastic-plastic damage model describing the complex mechanical behavior of concrete under cyclic loading is established. The model uses the four-parameter equivalent strain to convert the complex multi-axis problem into the uniaxial equivalent strain space, and considers the stiffness degradation and irreversible deformation during concrete unloading. In view of the non-negative characteristics of equivalent strain, a tension-compression conversion processing method is proposed, so that distinguishing between tension and compression damage is no longer necessary when solving damage variables, and the mathematical form of the model is concise as a result. Meanwhile, the realization process does not depend on the four-parameter model, and the realization method is applicable to various concrete equivalent strain models. By simulating the uniaxial cyclic load test and the dynamic damage process of the Koyna dam, the correctness and reliability of the model in this paper are verified. © 2023 Tsinghua University. All rights reserved.

引用

页码：152 / 161

页数：9

共 39 条

[1] CHEN A C T, CHEN W F., Constitutive relations for concrete, Journal of the Engineering Mechanics Division, 101, 4, pp. 465-481, (1975)
[2] BAZANT Z P., Endochronic inelasticity and incremental plasticity [J], International Journal of Solids and Structures, 14, 9, pp. 691-714, (1978)
[3] PAPANIKOLAOU V K, KAPPOS A J., Confinement-sensitive plasticity constitutive model for concrete in triaxial compression, International Journal of Solids and Structures, 44, 21, pp. 7021-7048, (2007)
[4] DING Faxing, WU Xia, XIANG Ping, Et al., Reviews on strength theories of concrete and isotropic rock, Engineering Mechanics, 37, 2, pp. 1-15, (2020)
[5] TANG Jingzhe, WANG Wei, ZHENG Yanfeng, Et al., Interface failure and contact analysis based on parallelized finite particle method, Engineering Mechanics, 38, 6, pp. 24-35, (2021)
[6] XU S, REINHARDT H W., Determination of double-K criterion for crack propagation in quasi-brittle fracture, Part II: Analytical evaluating and practical measuring methods for three-point bending notched beams, International Journal of Fracture, 98, 2, pp. 151-177, (1999)
[7] WANG G, WANG Y, LU W, Et al., XFEM based seismic potential failure mode analysis of concrete gravity dam –water –foundation systems through incremental dynamic analysis [J], Engineering Structures, 98, pp. 81-94, (2015)
[8] JIAO Yantao, CHENG Liping, A new anisotropic plastic-damage model and its numerical implementation for plain concrete, Engineering Mechanics, 39, 8, pp. 122-137, (2022)
[9] LI Zhongxian, LIU Zefeng, Review of concrete dynamic constitutive model, Journal of Tianjin University(Science and Technology), 48, 10, pp. 853-863, (2015)
[10] YU Zhiwu, WU Lingyu, SHAN Zhi, Models for deterministic and stochastic damage constitutions of concrete-A short review, Engineering Mechanics, 34, 9, pp. 1-12, (2017)

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