Experiment and Research of Using Fiber Bragg Grating to Monitor the Dynamic Response of Asphalt Concrete

被引：8
作者：
Li, Ke [1 ]
Xie, Jianguang [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Dept Civil Engn, Nanjing 210000, Jiangsu, Peoples R China
来源：
ADVANCED TRANSPORTATION, PTS 1 AND 2 | 2011年 / 97-98卷
关键词：
FBG sensor; asphalt concrete; impact test; dynamic response monitoring;
D O I：
10.4028/www.scientific.net/AMM.97-98.301
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Based on the fiber Bragg grating sensing technology, a FBG sensor is designed to monitor the dynamic response of asphalt concrete; the sensitivity coefficient of FBG sensor is 1.28pm/mu epsilon. Through the static load test, the correlation between strain and wavelength variation is 0.1797 mu epsilon/pm, after second packaged and embedded in SMA-13 asphalt concrete. The instantaneous impact on the road of high-speed vehicles is simulated by using drop hammer. The results are shown that the Sensor can satisfy the requirements of practical applications and succeed in monitoring the dynamic response of asphalt concrete. The monitored signal can reflect the viscoelastic-plastic deformation law of asphalt concrete. The sensor can be used to monitor the dynamic response of asphalt concrete.
引用
收藏
页码：301 / 304
页数：4
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