Experimental study and constitutive model of dynamic compressive mechanical behavior of microconcrete under seismic strain rate

被引：0
|
作者：
Zhang, Hao [1 ,2 ]
Li, Hongnan [2 ]
Wang, Weidong [1 ]
机构：
[1] School of Civil Engineering, Shenyang Jianzhu University, Shenyang
[2] Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2014年 / 35卷
关键词：
Compressive strength; Constitutive model; Dynamic compressive test; Elastic modulus; Microconcrete; Strain; Strain rate;
D O I：
10.14006/j.jzjgxb.2014.S2.044
中图分类号：
学科分类号：
摘要：
The dynamic compressive tests were carried out to investigate the effect of loading rate on strength and deformation of the microconcrete. The axial compressive constitutive model of the microconcrete with strain rate effect was presented under seismic action. In order to verify the accuracy and efficiency of the proposed constitutive model, the dynamic compressive tests were analyzed by using it in finite element software ABAQUS. The results show that the dynamic compressive strength and elastic modulus of the microconcrete increase with the increase of strain rate. There is no obviously change on peak strain. The compressive stress-strain curves are also quite similar. The results of the numerical analysis by using the proposed constitutive model approximately agree with the experimental results. This constitutive model can simulate the dynamic compressive properties of microconcrete very well under seismic action. ©, 2014, Science Press. All right reserved.
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页码：303 / 310
页数：7
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