SHPB TEST ON DYNAMICAL MECHANICAL BEHAVIOR OF CONCRETE WITH HIGH TEMPERATURE

被引：0

作者：

Bin, J. ^{[1
]}

Chen, X. Q. ^{[1
]}

Liu, P. ^{[1
]}

Wang, L. ^{[1
]}

机构：

[1] SW Univ Sci & Technol, Dept Civil Engn & Architecture, Mianyang 621010, SiChuan, Peoples R China

来源：

ADVANCES IN HETEROGENEOUS MATERIAL MECHANICS 2011 | 2011年

关键词：

concrete; high temperature; SHPB; Dynamic mechanical behavior;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An experimental system is designed by combining the split Hopkinson pressure bar (SHPB) with microwave heating device, based on numerical simulation and stress wave theory, availability of the experiment technique is analyzed. Tests of concrete whose temperature changes from room temperature to 650 degrees C 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

页码：1059 / 1062

页数：4