Revision of ISO 27306 for CTOD Toughness Correction for Constraint Loss

Fumiyoshi Minami; Mitsuru Ohata; Yasuhito Takashima

doi:10.4028/www.scientific.net/MSF.879.54

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Revision of ISO 27306 for CTOD Toughness Correction for Constraint Loss
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HomeMaterials Science ForumMaterials Science Forum Vol. 879Revision of ISO 27306 for CTOD Toughness...

Revision of ISO 27306 for CTOD Toughness Correction for Constraint Loss

Abstract:

As the result of the international standardization work in Japanese IST project, ISO 27306 were published in 2009 for correction of CTOD fracture toughness for constraint loss in steel components. ISO 27306 employs an equivalent CTOD ratio based on the Weibull stress criterion, which leads to more accurate fracture assessment than the conventional fracture mechanics assessment. On the occasion of the 1st periodical review, the revision of ISO 27306 has been proposed from Japan. This paper describes the key contents of the new ISO 27306. A case study is included on the fracture assessment of a wide plate component according to FAD (failure assessment diagram) approach specified in BS 7910:2013.

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Periodical:

Materials Science Forum (Volume 879)

Pages:

54-59

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.54

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Online since:

November 2016

Authors:

Fumiyoshi Minami*, Mitsuru Ohata, Yasuhito Takashima

Keywords:

Constraint Effect, CTOD Toughness, FAD, Fracture Assessment, Weibull Stress

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