SHPB Test on Dynamical Mechanical Behavior of Concrete with High Temperature

被引：1
|
作者：
Jia, Bin [1 ,2 ]
Li, Zhengliang [1 ]
Yao, Huachuan [2 ]
Tao, Junlin [2 ]
机构：
[1] Chong Qing Univ, Dept Civil Engn, Chongqing 400030, Peoples R China
[2] Southwest Univ Sci & Technol, Sch Civil Engn & Architecture, Mianyang 621010, Peoples R China
来源：
FRONTIERS OF GREEN BUILDING, MATERIALS AND CIVIL ENGINEERING, PTS 1-8 | 2011年 / 71-78卷
关键词：
concrete; high temperature; SHPB; strain rate; dynamic mechanical behavior;
D O I：
10.4028/www.scientific.net/AMM.71-78.760
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An experimental system is designed by combining the split Hopkinson pressure bar (SHPB) with microwave heating device, based on stress wave theory, availability of the experiment technique is analyzed. Tests of concrete whose temperature changes from room temperature to 650 square and impact velocity from 5m/s to 12m/s are completed and for the first time high-temperature dynamical damaging phenomena of concrete are obtained. Based on data analysis, the dynamical mechanical behavior of concrete with high temperature is affected by not only the strain rate effect whose influence keeps on decreasing with temperature increasing, but also the high temperature weakening effect. And the strain rate hardening effect is coupled with high temperature weakening effect, but the latter has greater influence.
引用
收藏
页码：760 / +
页数：2
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