冲击载荷作用下混凝土材料不连续破坏现象研究  

Study on the Discrete Failure Induced by Dynamic Loads

作　　者：王振[1] 朱哲明[1] 康骥鸣[1] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065

出　　处：《建筑工程（中英文版）》2014年第3期63-67,共5页Architectural Engineering

基　　金：国家973项目,2010CB732005;四川省科技计划项目（2014JY0002）;油气藏地质及开发工程国家重点实验室资助项目（PLN1202）.

摘　　要：近年来，冲击载荷作用下的脆性材料不连续断裂现象引起了国内外学者的注意。传统的静力学方法似乎并不能给出合理的解释。本文通过在较长时间冲击载荷作用下，对混凝土材料不连续断裂的实验探究，给出了其不连续断裂现象的合理解释。理论分析和试验方法对混凝土材料的不连续断裂破坏及其相关特性具有重要的指导意义。In recent years, the phenomenon zonal disintegration of brittle materials has received considerable attention in the field of rock mechanics. The traditional method of the static mechanics cannot provide reasonable explanation. In this paper, we give an explanation for the phenomenon of zonal disintegration, and impacting experiments by using concrete bar specimens were implemented. The impact was implemented by a steel bar, and their interaction between the concrete bar and the steel bar lasts for a long time. The research results of this paper on the theoretical analysis and experimental technique will help people to understand the mechanism of the phenomenon zonal disintegration.

关 键 词：混凝土材料 不连续破坏 冲击载荷 

分 类 号：TU[建筑科学]