混凝土材料凯塞效应与Felicity效应关系的实验研究  

Experimental study on the relationship of kaiser and felicity effect in concrete material

作　　者：纪洪广[1] 李造鼎[2] 

机构地区：[1]北京科技大学资源工程学院,北京100083 [2]东北大学,沈阳110006

出　　处：《应用声学》1997年第6期30-33,共4页Journal of Applied Acoustics

基　　金：国家教委博士点基金

摘　　要：本文通过试验，证明了混凝土材料在往复加载过程中声发射过程凯塞效应和弗勒斯特效应的存在性．并对凯塞效应同弗勒斯特比的关系进行了详细研究．结果发现，混凝土材料在往复加载过程中其凯塞效应不仅具有应力上限，而且具有应力下限．应力上限是由混凝土材料的破坏机制决定的，而应力下限则决定于混凝土材料本身的结构特性．In this paper the exsistence of Kaiser- and Felicity-effects and their relation-ship are studied by experiments on concrete specimens under cycle loading condition.Not only the exsistence of the upper stress limit of Kaiser effect is proved , but also that of the lower stress limit is detected .The upper stress limit is determined by the failure process and the lower limit is determined by internal structure of concrete material.

关 键 词：混凝土材料 凯塞效应 弗勒斯特效应 应力界限 

分 类 号：TU528.02[建筑科学—建筑技术科学]