Damage detection in Jacket type offshore platforms using modal strain energy

Amin Ghafooripour; M Amiri; B.  Asgarian

Damage detection in Jacket type offshore platforms using modal strain energy

Amin Ghafooripour, M Amiri, B. Asgarian

Research output: Contribution to journal › Article › peer-review

Abstract

Numerical studies are demonstrated for the 3D finite element model of Jacket platform. In the structures, damage often causes a loss of stifness in some elements so modal parameters such as natural frequencies and mode shape in the damage damaged structures are different from the undamaged state. Damage location is detected by comuting model strain energy change ratio. It is observed that this method can be used for damage detection of this kind of structures.

Original language	English
Pages (from-to)	325-337
Number of pages	13
Journal	Structural Engineering and Mechanics
Volume	33
Issue number	3
Publication status	Published - 2009

Keywords

Offshre structure
Damage detection
Jacket Paltform
Strain energy

Cite this

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title = "Damage detection in Jacket type offshore platforms using modal strain energy",

abstract = "Numerical studies are demonstrated for the 3D finite element model of Jacket platform. In the structures, damage often causes a loss of stifness in some elements so modal parameters such as natural frequencies and mode shape in the damage damaged structures are different from the undamaged state. Damage location is detected by comuting model strain energy change ratio. It is observed that this method can be used for damage detection of this kind of structures.",

keywords = "Offshre structure, Damage detection, Jacket Paltform, Strain energy",

author = "Amin Ghafooripour and M Amiri and B. Asgarian",

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year = "2009",

language = "English",

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issn = "1225-4568",

publisher = "Techno Press",

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T1 - Damage detection in Jacket type offshore platforms using modal strain energy

AU - Ghafooripour, Amin

AU - Amiri, M

AU - Asgarian, B.

N1 - No DOI, LK

PY - 2009

Y1 - 2009

N2 - Numerical studies are demonstrated for the 3D finite element model of Jacket platform. In the structures, damage often causes a loss of stifness in some elements so modal parameters such as natural frequencies and mode shape in the damage damaged structures are different from the undamaged state. Damage location is detected by comuting model strain energy change ratio. It is observed that this method can be used for damage detection of this kind of structures.

AB - Numerical studies are demonstrated for the 3D finite element model of Jacket platform. In the structures, damage often causes a loss of stifness in some elements so modal parameters such as natural frequencies and mode shape in the damage damaged structures are different from the undamaged state. Damage location is detected by comuting model strain energy change ratio. It is observed that this method can be used for damage detection of this kind of structures.

KW - Offshre structure

KW - Damage detection

KW - Jacket Paltform

KW - Strain energy

M3 - Article

SN - 1225-4568

VL - 33

SP - 325

EP - 337

JO - Structural Engineering and Mechanics

JF - Structural Engineering and Mechanics

IS - 3

ER -

Damage detection in Jacket type offshore platforms using modal strain energy

Abstract

Keywords

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