玻璃钢/复合材料Issue(9)：46-51,6.
基于碳纤维材料力阻效应的传感器工程应用初探
STUDY ON THE ENGINEERING APPLICATION OF THE SENSOR BASED ON THE PIEZO-RESISTANCE EFFECT OF CFRP
摘要
Abstract
The piezo-resistance effect of Carbon Fiber Reinforced Plastic (CFRP) has been explored and verified in both experimental and theoretical fields.The new CFRP sensing material made by improving the formula of the epoxy resin matrix,which was tested by its piezo-resistance effect,has been proved feasible as the sensor.However,in the practical engineering,the stress condition of the load-bearing material is much more complicated than the tensile test.In this paper,we have designed an experiment by putting the CFRP sensing material at the tensile zone of the beam,which could simulate the practical stress condition of the steel at the maximum degree.We found out that in the practical application,the CFRP sensing material could well and intuitively reflect the information of the structure such as the load,crack and other state situations.The CFRP sensing material show a good linear relationship between the out load of the beam and the resistance,which is the basic feasibility of the smart material with both load-bearing and sensing characteristic.The sensitivity of CFRP is smaller than it in the tensile test but is enough to measure and could be improved in the further process.Especially,in the low loading stage,the CFRP could reflect the load of the beam well by the piezo-resistance effect,which means the sensor is quite practical.关键词
CFRP/力阻特性/工程应用/结构监测Key words
CFRP/piezo-resistance effect/engineering application/structure monitor分类
通用工业技术引用本文复制引用
黄俊捷,刘荣桂,许兆辉,谢桂华..基于碳纤维材料力阻效应的传感器工程应用初探[J].玻璃钢/复合材料,2017,(9):46-51,6.基金项目
国家自然科学基金项目(51478209) （51478209）
国家自然科学基金青年基金(51508235) （51508235）
江苏省科技厅基金(BK20140553) （BK20140553）
