|本期目录/Table of Contents|

[1]李建波,林皋,陈健云,等.混凝土损伤演化的随机力学参数细观数值影响分析[J].建筑科学与工程学报,2007,24(03):7-12.
 LI Jian-bo,LIN Gao,CHEN Jian-yun,et al.Mesoscopic Numerical Influence Analysis of Random MechanicalParameter of Concrete Damage Evolution[J].Journal of Architecture and Civil Engineering,2007,24(03):7-12.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
24卷
期数:
2007年03期
页码:
7-12
栏目:
出版日期:
2007-09-20

文章信息/Info

Title:
Mesoscopic Numerical Influence Analysis of Random Mechanical Parameter of Concrete Damage Evolution
作者:
李建波1林皋12陈健云12赵娟1
1. 大连理工大学 工程抗震研究所,辽宁 大连 116024; 2. 大连理工大学 海岸与近海工程国家重点实验室,辽宁 大连 116024
Author(s):
LI Jian-bo1 LIN Gao12 CHEN Jian-yun12 ZHAO Juan1
1. Earthquake Engineering Research Division, Dalian University of Technology, Dalian 116024, Liaoning, China; 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
关键词:
混凝土 随机骨料模型 细观数值模拟 损伤与破坏 单轴拉伸 单轴压缩
Keywords:
concrete random aggregate model mesoscopic numerical simulation damage and fracture uniaxial tension uniaxial compression
分类号:
TU528.041
DOI:
-
文献标志码:
A
摘要:
在提出一种交叠骨料微步长迭代自动调整算法的基础上,采用任意凹凸型骨料配置算法建立混凝土细观数值试件。基于细观单元的弹性损伤本构关系,采用位移控制模式,着重针对两类常用的力学参数随机分布——Weibull及对数正态分布,进行了不同力学参数的常规混凝土拉压数值模型破坏试验,分析了主要力学参数的随机分布对混凝土试件宏观表征力学性质的影响。该研究可为混凝土细观数值模型中力学参数的合理确定提供依据。
Abstract:
According to the objective grading curve and filling area fraction of aggregates, numerical concrete specimen was firstly built on the basis of the advanced numerical generation method of aggregates with random shapes. And then, mesoscopic numerical simulation tests were carried out to study the damage evolution and to compare the influences of mechanical parameter distribution patterns(Weibull and lognormal distribution)on the mesoscopic strength of concrete specimen. Numerical result shows that Weibull distribution pattern is more active to reflect the discrete mechanical properties of concrete.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2007-07-15
基金项目:国家自然科学基金项目(90510018); 国家自然科学基金项目(50679006); 大连理工大学青年教师培养基金项目(893221)
作者简介:李建波(1977-),男,河北邢台人,讲师,工学博士,E-mail:jianboli@dlut.edu.cn。
更新日期/Last Update: 2007-09-20