The SINTAP fracture toughness estimation procedure

Henryk Pisarski (Corresponding Author), Kim Wallin

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)

Abstract

The maximum likelihood (MML) procedure for the analysis of fracture toughness data generated at a single temperature that was developed for the SINTAP flaw assessment procedure is described. The procedure involves a series of steps to ensure that a Weibull toughness distribution fitted to experimental data is conservative. Validation is provided by experimental data from weld metal, heat affected zone and parent plate. Results are compared with those from assessments carried out to existing methods described in BSI PD6493:1991 and BS 7910:1999. It is concluded that for small data sets, the MML procedure provides a greater level of consistency and reduces selection of potentially non-conservative fracture toughness values.

Original languageEnglish
Pages (from-to)613 - 624
Number of pages12
JournalEngineering Fracture Mechanics
Volume67
Issue number6
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

Fingerprint

Maximum likelihood
Fracture toughness
Heat affected zone
Toughness
Welds
Metals
Defects
Temperature

Keywords

  • weld metals
  • fracture mechanics
  • weak link
  • heat affected zone
  • structural assessment

Cite this

Pisarski, Henryk ; Wallin, Kim. / The SINTAP fracture toughness estimation procedure. In: Engineering Fracture Mechanics. 2000 ; Vol. 67, No. 6. pp. 613 - 624.
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The SINTAP fracture toughness estimation procedure. / Pisarski, Henryk (Corresponding Author); Wallin, Kim.

In: Engineering Fracture Mechanics, Vol. 67, No. 6, 2000, p. 613 - 624.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - The SINTAP fracture toughness estimation procedure

AU - Pisarski, Henryk

AU - Wallin, Kim

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N2 - The maximum likelihood (MML) procedure for the analysis of fracture toughness data generated at a single temperature that was developed for the SINTAP flaw assessment procedure is described. The procedure involves a series of steps to ensure that a Weibull toughness distribution fitted to experimental data is conservative. Validation is provided by experimental data from weld metal, heat affected zone and parent plate. Results are compared with those from assessments carried out to existing methods described in BSI PD6493:1991 and BS 7910:1999. It is concluded that for small data sets, the MML procedure provides a greater level of consistency and reduces selection of potentially non-conservative fracture toughness values.

AB - The maximum likelihood (MML) procedure for the analysis of fracture toughness data generated at a single temperature that was developed for the SINTAP flaw assessment procedure is described. The procedure involves a series of steps to ensure that a Weibull toughness distribution fitted to experimental data is conservative. Validation is provided by experimental data from weld metal, heat affected zone and parent plate. Results are compared with those from assessments carried out to existing methods described in BSI PD6493:1991 and BS 7910:1999. It is concluded that for small data sets, the MML procedure provides a greater level of consistency and reduces selection of potentially non-conservative fracture toughness values.

KW - weld metals

KW - fracture mechanics

KW - weak link

KW - heat affected zone

KW - structural assessment

U2 - 10.1016/S0013-7944(00)00076-X

DO - 10.1016/S0013-7944(00)00076-X

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