建筑科学与工程学报
JOURNAL OF ARCHITECTURE AND CIVIL ENGINEERING
2005 Vol.22 No.4 P.15-21


混凝土弹塑性损伤本构关系统一模型

吴建营  李杰 

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.
关键词:混凝土;损伤力学;本构模型;非线性分析
分类号:TU313  文献标识码:A

文章编号:1673-2049(2005)04-0015-07

Unified elasto-plastic damage constitutive relations model for concrete

WU Jian-ying  LI Jie 

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
作者单位:吴建营(华南理工大学,建筑学院,广东,广州,510640) 
     李杰(同济大学,土木工程学院,上海,200092) 

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收稿日期:2005年10月29日

出版日期:2005年12月31日

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