混凝土轴拉损伤声发射特性研究综述  

Overview on study of acoustic emission characteristics of concrete damage under uniaxial tension

作　　者：王岩[1] 王瑶[2] 姚金鑫[1] 路桂娟[1] 徐郑郑[1] 

机构地区：[1]河海大学土木与交通学院,江苏南京210098 [2]金陵科技学院建筑工程学院,江苏南京211169

出　　处：《水利水电技术》2012年第12期92-95,99,共5页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金项目资助(51009058);中国博士后科学基金面上项目资助(2011M501160)

摘　　要：在分析和总结国内外相关文献的基础上,结合多年从事相关研究的经验和成果,对国内外混凝土、岩石类准脆性材料轴拉声发射特性的研究成果进行综述。从试验方法、声发射活动性评价、声发射源定位分析、基于声发射特征参数、波形FFT频谱的特征识别分析5个方面,阐述了混凝土轴拉声发射特性的研究现状、研究方向和有待深入研究的问题。Based on the analysis and summary of the relevant technical literatures at home and abroad, a summarization is made on the studies of the acoustic emission（AE） characteristics of the quasic-brittle materials such as concrete and rock under uniaxial tension loading in accordance with the experiences and achievements from the corresponding research carried out for several years. The research status, trends and problems to be solved are discussed from five aspects, i. e. the testing method, acoustic emission activity evaluation, acoustic emission source location analysis, feature identification based on acoustic emission parameters and FFT spectrums.

关 键 词：混凝土 单轴拉伸 声发射 综述 

分 类 号：TU502[建筑科学—建筑技术科学]