Modal flexibility-based damage detection technique of steel beam by dynamic strain measurements using FBG sensors

被引：0
|
作者：
Park, Hyun-Jun [1 ]
Koo, Ki-Young [1 ]
Yun, Chung-Bang [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, Taejon 305701, South Korea
来源：
INTERNATIONAL JOURNAL OF STEEL STRUCTURES | 2007年 / 7卷 / 01期
关键词：
damage detection; FBG sensors; dynamic strain measurements; modal strain-flexibility;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The development of smart sensors for structural health monitoring and damage detection has been advanced remarkably in recent years. Nowadays fiber optic sensors, especially fiber Bragg grating (FBG) sensors, have attracted many researchers' interest for their attractive features, such as multiplexing capability, durability, lightweight, electromagnetic interference immunity. In this paper, modal flexibility-based damage detection approach of steel beam by dynamic strain measurements using FBG sensors are presented. An experimental Study was conducted to investigate the feasibility of the method for damage detection and localization. It has been found that the strain-flexibility approach using dynamic strain measurements from FBG sensors can successfully detect and localize multiple small damages near the sensors. However, the damage detection range of the present short-gage FBG sensors seems rather narrow. Long-gage FBG sensors would be a possible solution.
引用
收藏
页码：11 / 18
页数：8
相关论文
共 50 条
  • [1] Multiple damage detection techniques by dynamic strain measurements using FBG sensors
    Park, Hyun-Jun
    Koo, Ki-Young
    Yun, Chung-Bang
    SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2007, PTS 1 AND 2, 2007, 6529
  • [2] Modal flexibility-based damage detection of cantilever beam-type structures using baseline modification
    Sung, S. H.
    Koo, K. Y.
    Jung, H. J.
    JOURNAL OF SOUND AND VIBRATION, 2014, 333 (18) : 4123 - 4138
  • [3] Application of modal flexibility-based deflections for damage diagnosis of a steel frame structure
    Bernagozzi, G.
    Ventura, C. E.
    Allahdadian, S.
    Kaya, Y.
    Landi, L.
    Diotallevi, P. P.
    X INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS (EURODYN 2017), 2017, 199 : 2026 - 2033
  • [4] A flexibility-based damage identification method using ambient modal data
    Yang, Q. W.
    Li, C. H.
    2009 ASIA-PACIFIC CONFERENCE ON INFORMATION PROCESSING (APCIP 2009), VOL 2, PROCEEDINGS, 2009, : 318 - 321
  • [5] Locating and Quantifying Damage in Beam-like Structures Using Modal Flexibility-based Deflection Changes
    Le, N. T.
    Nguyen, A.
    Thambiratnam, D. P.
    Chan, T. H. T.
    Khuc, T.
    INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS, 2020, 20 (10)
  • [6] Evaluation of flexibility-based damage indices using different modal response data
    Adewuyi, A. P.
    Franklin, S. O.
    Wu, Z. S.
    INSIGHTS AND INNOVATIONS IN STRUCTURAL ENGINEERING, MECHANICS AND COMPUTATION, 2016, : 1884 - 1889
  • [7] Modal macro-strain flexibility methods for damage localization in flexural structures using long-gage FBG sensors
    Adewuyi, A. P.
    Wu, Z. S.
    STRUCTURAL CONTROL & HEALTH MONITORING, 2011, 18 (03): : 341 - 360
  • [8] Experimental validation of a modal flexibility-based damage detection method for a cyber-physical system
    Martinez-Castro, Rosana E.
    Eskew, Edward L.
    Jang, Shinae
    SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2014, 2014, 9061
  • [9] Modal macro-strain vector based damage detection methodology with long-gauge FBG sensors
    Xu, B.
    Liu, C. W.
    Masri, Sami F.
    SECOND INTERNATIONAL CONFERENCE ON SMART MATERIALS AND NANOTECHNOLOGY IN ENGINEERING, 2009, 7493
  • [10] A Novel Modal Strain Method for Damage Detection in SHM Based on FBG and iFEM
    Yang, Haifeng
    Wu, Ziyan
    Sun, Peng
    STRUCTURAL HEALTH MONITORING 2015: SYSTEM RELIABILITY FOR VERIFICATION AND IMPLEMENTATION, VOLS. 1 AND 2, 2015, : 515 - 522
12345