Improved Friction Joint With Self-Locking Grips

Andrei Costache, Kristian Glejbøl, Ion Marius Sivebæk, Christian Berggreen

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Flexible risers are used in the oil industry to transport liquids and gas from the seafloorto extraction and production equipment at the sea surface. Ongoing research aims at using composite materials instead of steel, in order to reduce weight and increase stiffness. Ensuring an optimal load transfer between the composite and metal components is very important. This paper presents an improved method for anchoring a flat fiber reinforced tendon using a double grip system with self-locking grips. The novelty is the combination of new experimental results and finite element (FE) analysis to develop asuperior dry friction grip. Experimental results are carried using a dedicated test setup, through which the test parameters can be accurately controlled. The efficiency of the grip system during pullout is superior to results obtained with flat grips. Numerical results offer an in-depth understanding of the influence between friction, geometrical parameters,and performance, making it possible to optimize the design. Results show that this grip system offers immediate technical applications, in a variety of conditions.
Original languageEnglish
Article number051401
JournalJournal of Offshore Mechanics and Arctic Engineering
Volume138
Pages (from-to)8
ISSN0892-7219
DOIs
Publication statusPublished - 2016

Keywords

  • Friction joint
  • Clamping force
  • Fiber-reinforced polymer
  • Coefficient of friction
  • Pullout force

Cite this

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title = "Improved Friction Joint With Self-Locking Grips",
abstract = "Flexible risers are used in the oil industry to transport liquids and gas from the seafloorto extraction and production equipment at the sea surface. Ongoing research aims at using composite materials instead of steel, in order to reduce weight and increase stiffness. Ensuring an optimal load transfer between the composite and metal components is very important. This paper presents an improved method for anchoring a flat fiber reinforced tendon using a double grip system with self-locking grips. The novelty is the combination of new experimental results and finite element (FE) analysis to develop asuperior dry friction grip. Experimental results are carried using a dedicated test setup, through which the test parameters can be accurately controlled. The efficiency of the grip system during pullout is superior to results obtained with flat grips. Numerical results offer an in-depth understanding of the influence between friction, geometrical parameters,and performance, making it possible to optimize the design. Results show that this grip system offers immediate technical applications, in a variety of conditions.",
keywords = "Friction joint, Clamping force, Fiber-reinforced polymer, Coefficient of friction, Pullout force",
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year = "2016",
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language = "English",
volume = "138",
pages = "8",
journal = "Journal of Offshore Mechanics and Arctic Engineering",
issn = "0892-7219",
publisher = "American Society of Mechanical Engineers",

}

Improved Friction Joint With Self-Locking Grips. / Costache, Andrei; Glejbøl, Kristian; Sivebæk, Ion Marius; Berggreen, Christian.

In: Journal of Offshore Mechanics and Arctic Engineering, Vol. 138, 051401, 2016, p. 8.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Improved Friction Joint With Self-Locking Grips

AU - Costache, Andrei

AU - Glejbøl, Kristian

AU - Sivebæk, Ion Marius

AU - Berggreen, Christian

PY - 2016

Y1 - 2016

N2 - Flexible risers are used in the oil industry to transport liquids and gas from the seafloorto extraction and production equipment at the sea surface. Ongoing research aims at using composite materials instead of steel, in order to reduce weight and increase stiffness. Ensuring an optimal load transfer between the composite and metal components is very important. This paper presents an improved method for anchoring a flat fiber reinforced tendon using a double grip system with self-locking grips. The novelty is the combination of new experimental results and finite element (FE) analysis to develop asuperior dry friction grip. Experimental results are carried using a dedicated test setup, through which the test parameters can be accurately controlled. The efficiency of the grip system during pullout is superior to results obtained with flat grips. Numerical results offer an in-depth understanding of the influence between friction, geometrical parameters,and performance, making it possible to optimize the design. Results show that this grip system offers immediate technical applications, in a variety of conditions.

AB - Flexible risers are used in the oil industry to transport liquids and gas from the seafloorto extraction and production equipment at the sea surface. Ongoing research aims at using composite materials instead of steel, in order to reduce weight and increase stiffness. Ensuring an optimal load transfer between the composite and metal components is very important. This paper presents an improved method for anchoring a flat fiber reinforced tendon using a double grip system with self-locking grips. The novelty is the combination of new experimental results and finite element (FE) analysis to develop asuperior dry friction grip. Experimental results are carried using a dedicated test setup, through which the test parameters can be accurately controlled. The efficiency of the grip system during pullout is superior to results obtained with flat grips. Numerical results offer an in-depth understanding of the influence between friction, geometrical parameters,and performance, making it possible to optimize the design. Results show that this grip system offers immediate technical applications, in a variety of conditions.

KW - Friction joint

KW - Clamping force

KW - Fiber-reinforced polymer

KW - Coefficient of friction

KW - Pullout force

U2 - 10.1115/1.4033331

DO - 10.1115/1.4033331

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JO - Journal of Offshore Mechanics and Arctic Engineering

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SN - 0892-7219

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