摘要
利用冲击回波方法对不同配比混凝土的损伤特性进行了试验研究。讨论了混凝土损伤程度与机械应力波传播特性的关系。研究表明,冲击回波方法中应力波波速和频谱等参数能够很好地反映混凝土内部损伤发展的各个阶段。
The damage characteristics of concrete with different mixture were studied by impact echo method.The relationship between damage range and the stress wave parameters,such as stress wave speed,frequency spectrum,was discussed.The result showed that the development of damage could be reflected by the stress wave speed and the frequency spectrum of the impact echo.
出处
《无损检测》
北大核心
2008年第4期229-231,共3页
Nondestructive Testing
基金
湖北省交通科技资助项目(HYYH-2006-06)
内蒙古交通科技资助项目(NJ-2005-21)
关键词
混凝土损伤
冲击回波
波速
频谱
Damage of concrete
Impact echo
Stress wave speed
Frequency spectrum
