EI、Scopus 收录
中文核心期刊
Jiang Chen, Haowu Liu. Nonlinear finite element analysis and experiments of distributed fiber optic sensor system for crack detection[J]. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41(4): 542-548. doi: 10.6052/0459-1879-2009-4-2008-345
Citation: Jiang Chen, Haowu Liu. Nonlinear finite element analysis and experiments of distributed fiber optic sensor system for crack detection[J]. Chinese Journal of Theoretical and Applied Mechanics, 2009, 41(4): 542-548. doi: 10.6052/0459-1879-2009-4-2008-345

Nonlinear finite element analysis and experiments of distributed fiber optic sensor system for crack detection

doi: 10.6052/0459-1879-2009-4-2008-345
  • Received Date: 2008-05-27
  • Rev Recd Date: 2009-04-09
  • Publish Date: 2009-07-18
  • The micro-mechanical behaviors of fiber-concrete complexin the technology of distributed fiber optic sensor system for crackdetection were investigated. 3-D nonlinear numerical simulation wasperformed with ANSYS, considering the nonlinear interfaces of coating-sheathand sheath-concrete. The bilinear isotropic hardening model was applied forconcrete to relax local stress concentration and avoid excessive penetrationbetween the sheath and the concrete. The mechanical parameters of contactpairs were determined by tests. The microscopic stress distribution infiber-concrete complex and curvature distribution of fiber were obtained.The relationship between crack width and bending loss was analyzedquantitatively. The computational results have shown a good accordance withexperimental results. The influences of fiber layout and sheath thickness onsensing sensitivity and dynamic range have been proved theoretically.Meanwhile, an improved micromechanical analysis was developed for thetechnology of distributed fiber optic sensor system for crack detection.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1712) PDF downloads(564) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return