FBG应变测试技术在混凝土内爆炸试验中的应用  

Application of FBG Strain Measuring Technique to the Concrete Inward Detonation Test

作　　者：章征林 王源[1] 孙阳阳[1] 张文渊[1] 赵鹏冲 

机构地区：[1]解放军理工大学国防工程学院,江苏南京210007

出　　处：《压电与声光》2017年第2期281-283,288,共4页Piezoelectrics & Acoustooptics

基　　金：国家重点基础研究发展("九七三")计划基金资助项目(2010CB732003;2013CB036005);国家科学青年基金资助项目(51608528)

摘　　要：在混凝土的内爆炸试验中,利用光纤光栅(FBG)传感技术对混凝土表面应变进行测量,获得了内爆炸荷载作用下的混凝土表面应变历史曲线,并对这些曲线进行了初步分析。分析结果表明试验采用的测量方法可行,同时也验证了重力作用对爆炸荷载混凝土表面应变分布的影响,且捕捉到混凝土试件与实验坑的碰撞响应。The fiber Bragg grating（FBG）sensor technology is used to measure the concrete face strain during the experiment on the concrete inward detonation.The historical curves of the concrete face strain under the load function of the inward detonation are obtained and analyzed preliminarily.The results show that the proposed measurement method is feasible,the effects of gravity on the concrete surface strain distribution of blasting load is verified,and the collision response of the concrete specimen and the test pit was captured.

关 键 词：动态测试 光纤光栅(FBG)传感技术 混凝土内爆炸 表面应变 试验分析 

分 类 号：TN249[电子电信—物理电子学] TU443[建筑科学—岩土工程]