Cristin-resultat-ID: 1272023
Sist endret: 24. september 2015, 20:15
Resultat
Vitenskapelig foredrag
2009

STRAIN-BASED FRACTURE ASSESSMENT OF PIPELINES

Bidragsytere:
  • Erlend Olsø
  • Erling Østby og
  • Bård Nyhus

Presentasjon

Navn på arrangementet: The Rio Pipeline 2009 Conference & Exposition
Sted: Rio de Janeiro, Brasil
Dato fra: 22. september 2009
Dato til: 24. september 2009

Arrangør:

Arrangørnavn: IBP

Om resultatet

Vitenskapelig foredrag
Publiseringsår: 2009

Importkilder

SINTEF AS-ID: S14227

Beskrivelse Beskrivelse

Tittel

STRAIN-BASED FRACTURE ASSESSMENT OF PIPELINES

Sammendrag

The oil and gas industry moves into harsher regions and faces challenges with i.e. deep water, arctic conditions and seismic regions. Consequently, ensuring the integrity of pipelines becomes more challenging, and potential large deformation scenarios that can be attributed to the abovementioned areas have lead to a current strong focus on strain-based fracture assessment methods for pipelines. However, no widely established methods exist today. In this paper specific challenges related to development of such methods are discussed. Keywords are biaxial loading, crack driving force relations, ductile tearing resistance, and definition of strain capacity. The effect of the different features will be illustrated with both experimental and numerical simulation results. Experimental results presented will cover both large- and small-scale testing. A highly efficient and accurate line-spring based numerical fracture assessment method will be presented.  A simplified scheme for a strain-based fracture assessment method will also be briefly outlined, and the extension of this method to also include partial safety factors is discussed.

Bidragsytere

Erlend Olsø

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS

Erling Østby

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS

Bård Nyhus

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS
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