Ductile fracture toughness estimation based on CVN upper shelf energy

Kim Wallin

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 % lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.
Original languageEnglish
Title of host publicationBALTICA V
Subtitle of host publicationCondition and Life Management for Power Plants
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages635-646
Volume2
ISBN (Electronic)951-38-5717-4
ISBN (Print)951-38-5716-6
Publication statusPublished - 2001
MoE publication typeA4 Article in a conference publication
EventBALTICA V - Condition and Life Management for Power Plants - Porvoo, Finland
Duration: 6 Jun 20018 Jun 2001

Publication series

NameVTT Symposium
PublisherVTT
Number212
ISSN (Print)0357-9387
ISSN (Electronic)1455-0873

Conference

ConferenceBALTICA V - Condition and Life Management for Power Plants
Abbreviated titleBaltica V
CountryFinland
CityPorvoo
Period6/06/018/06/01

Fingerprint

fracture toughness
energy
power law

Cite this

Wallin, K. (2001). Ductile fracture toughness estimation based on CVN upper shelf energy. In BALTICA V: Condition and Life Management for Power Plants (Vol. 2, pp. 635-646). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 212
Wallin, Kim. / Ductile fracture toughness estimation based on CVN upper shelf energy. BALTICA V: Condition and Life Management for Power Plants. Vol. 2 Espoo : VTT Technical Research Centre of Finland, 2001. pp. 635-646 (VTT Symposium; No. 212).
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Wallin, K 2001, Ductile fracture toughness estimation based on CVN upper shelf energy. in BALTICA V: Condition and Life Management for Power Plants. vol. 2, VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 212, pp. 635-646, BALTICA V - Condition and Life Management for Power Plants, Porvoo, Finland, 6/06/01.

Ductile fracture toughness estimation based on CVN upper shelf energy. / Wallin, Kim.

BALTICA V: Condition and Life Management for Power Plants. Vol. 2 Espoo : VTT Technical Research Centre of Finland, 2001. p. 635-646 (VTT Symposium; No. 212).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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T1 - Ductile fracture toughness estimation based on CVN upper shelf energy

AU - Wallin, Kim

PY - 2001

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N2 - J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 % lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.

AB - J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 % lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.

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SP - 635

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BT - BALTICA V

PB - VTT Technical Research Centre of Finland

CY - Espoo

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Wallin K. Ductile fracture toughness estimation based on CVN upper shelf energy. In BALTICA V: Condition and Life Management for Power Plants. Vol. 2. Espoo: VTT Technical Research Centre of Finland. 2001. p. 635-646. (VTT Symposium; No. 212).