|本期目录/Table of Contents|

[1]吴建营,李杰.混凝土弹塑性损伤本构关系统一模型[J].建筑科学与工程学报,2005,22(04):15-21.
　WU Jian-ying,LI Jie.Unified elasto-plastic damage constitutive relations model for concrete[J].Journal of Architecture and Civil Engineering,2005,22(04):15-21.
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混凝土弹塑性损伤本构关系统一模型(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
22卷
期数:
2005年04期
页码:
15-21
栏目:
出版日期:
2006-12-20

文章信息/Info

Title:
Unified elasto-plastic damage constitutive relations model for concrete
作者:
吴建营1,李杰2
1. 华南理工大学 建筑学院,广东 广州 510640; 2. 同济大学 土木工程学院,上海 200092
Author(s):
WU Jian-ying1, LI Jie2
1. School of Architecture, South China University of Technology, Guangzhou 510640, China; 2. School of Civil Engineering, Tongji University, Shanghai 200092, China
关键词:
混凝土;  损伤力学;  本构模型;  非线性分析
Keywords:
concrete;  damage mechanics;  constitutive model;  nonlinear analysis
分类号:
TU313
DOI:
-
文献标志码:
A
摘要:
在提出了静力弹塑性损伤本构模型的基础上,通过对损伤能释放率阀值进行PERZYNA粘性规则化以及引入粘弹性—损伤阻尼应力,建立了基于能量的混凝土弹塑性损伤本构关系统一模型; 给出了该模型的基本公式和相应的非线性有限元数值实现算法,并对KOYNA混凝土重力坝进行了动力非线性数值模拟。结果表明:建议统一模型能较好地描述包括应变率效应在内的混凝土典型非线性行为,并可以直接在材料本构层次考虑阻尼的影响,同时其数值算法是稳定有效的,可以应用于大型混凝土结构的非线性分析。
Abstract:
On the basis of the PERZYNA-type viscous regulating of the damage energy release rate thresholds and the introducing of the visco-elastic-damage damping stress, the unified framework of the elasto-plastic damage model for concrete was proposed, which is capable of describing the typical nonlinear behaviors of concrete under various loading states and taking the damping into consideration on the material scale. The primary formulations and the corresponding numerical algorithm were presented in details. The simulation results of KOYNA dam demonstrate its effectiveness and capability of predicting the nonlinear responses of large concrete structures under static and dynamic loadings.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2005-10-29
基金项目:国家自然科学基金创新研究群体科学基金项目(50321803)
作者简介:吴建营(1977-),男,湖北麻城人,华南理工大学讲师,工学博士.E-mail:jywu@scut.edu.cn
更新日期/Last Update: 2006-12-20