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Annals of Limnology and Oceanography  Open Access


    Open Access Research Article Article ID: ALO-1-104

    Corrosion Detection in Pipelines Based on Measurement of Natural Frequencies

    Zhenghao Yang and Erkan Oterkus*

    Natural frequency of structure mainly depends on mass and stiffness. Stiffness is bound to change after structural damage. Hence, natural frequency starts to decline.

    This study presents a new method to determine the location and degree of the corrosion damage by measuring the natural frequencies of the damaged pipeline. With this method, only measurement of the first and second natural frequencies of damaged pipeline is required. The formulation is based on Rayleigh’s Law to determine a relationship between the degree of damage and damage location. The formulation is validated by comparing against beam and solid fi nite element models.


    Published on: Dec 31, 2016 Pages: 26-31

    Full Text PDF Full Text HTML DOI: 10.17352/alo.000004 CrossMark

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