Corrosion detection in pipelines based on measurement of natural frequencies

Research output: Contribution to journalArticle

Abstract

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 finite element models.
LanguageEnglish
Pages26-31
Number of pages6
JournalOpen Journal of Oceanography
Volume1
Issue number1
DOIs
Publication statusPublished - 31 Dec 2016

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Natural frequencies
Pipelines
Corrosion
Stiffness

Keywords

  • corrosion detection
  • pipeline
  • Rayleigh's law
  • natural frequency
  • mass
  • stiffness
  • corrosion damage
  • finite element methods

Cite this

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title = "Corrosion detection in pipelines based on measurement of natural frequencies",
abstract = "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 finite element models.",
keywords = "corrosion detection, pipeline, Rayleigh's law, natural frequency, mass, stiffness, corrosion damage, finite element methods",
author = "Zhenghao Yang and Erkan Oterkus",
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Corrosion detection in pipelines based on measurement of natural frequencies. / Yang, Zhenghao; Oterkus, Erkan.

In: Open Journal of Oceanography, Vol. 1, No. 1, 31.12.2016, p. 26-31.

Research output: Contribution to journalArticle

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AU - Yang, Zhenghao

AU - Oterkus, Erkan

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AB - 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 finite element models.

KW - corrosion detection

KW - pipeline

KW - Rayleigh's law

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KW - mass

KW - stiffness

KW - corrosion damage

KW - finite element methods

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