Upper shelf energy normalisation for sub-sized Charpy-V specimens

Kim Wallin (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)

Abstract

When the plate thickness is less than 10 mm, testing with standard sized Charpy-V notch specimens is impossible. In such cases the testing must be based on sub-sized specimens. Sometimes, standard size specimens are impractical also for thicker sections. The use of sub-sized specimens requires extrapolation of the result from the sub-sized specimen to correspond to the result from a standard sized specimen. In this work, literature data combined with newly generated data were collected and examined in order to find the correct normalisation procedure for sub-sized specimen, upper shelf impact energy data. The resulting normalisation procedure, combined with a new Charpy-V-J–R curve correlation, was shown to produce realistic estimates of the materials upper shelf fracture toughness. In the case of materials showing pronounced splitting in the Charpy-V test, the estimates may be over-conservative.
Original languageEnglish
Pages (from-to)463-470
Number of pages8
JournalInternational Journal of Pressure Vessels and Piping
Volume78
Issue number7
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

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Testing
Extrapolation
Fracture toughness

Keywords

  • Charpy-V
  • Sub-size specimens
  • Upper shelf
  • Ductile fracture
  • Size effects

Cite this

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title = "Upper shelf energy normalisation for sub-sized Charpy-V specimens",
abstract = "When the plate thickness is less than 10 mm, testing with standard sized Charpy-V notch specimens is impossible. In such cases the testing must be based on sub-sized specimens. Sometimes, standard size specimens are impractical also for thicker sections. The use of sub-sized specimens requires extrapolation of the result from the sub-sized specimen to correspond to the result from a standard sized specimen. In this work, literature data combined with newly generated data were collected and examined in order to find the correct normalisation procedure for sub-sized specimen, upper shelf impact energy data. The resulting normalisation procedure, combined with a new Charpy-V-J–R curve correlation, was shown to produce realistic estimates of the materials upper shelf fracture toughness. In the case of materials showing pronounced splitting in the Charpy-V test, the estimates may be over-conservative.",
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journal = "International Journal of Pressure Vessels and Piping",
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Upper shelf energy normalisation for sub-sized Charpy-V specimens. / Wallin, Kim (Corresponding Author).

In: International Journal of Pressure Vessels and Piping, Vol. 78, No. 7, 2001, p. 463-470.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Upper shelf energy normalisation for sub-sized Charpy-V specimens

AU - Wallin, Kim

PY - 2001

Y1 - 2001

N2 - When the plate thickness is less than 10 mm, testing with standard sized Charpy-V notch specimens is impossible. In such cases the testing must be based on sub-sized specimens. Sometimes, standard size specimens are impractical also for thicker sections. The use of sub-sized specimens requires extrapolation of the result from the sub-sized specimen to correspond to the result from a standard sized specimen. In this work, literature data combined with newly generated data were collected and examined in order to find the correct normalisation procedure for sub-sized specimen, upper shelf impact energy data. The resulting normalisation procedure, combined with a new Charpy-V-J–R curve correlation, was shown to produce realistic estimates of the materials upper shelf fracture toughness. In the case of materials showing pronounced splitting in the Charpy-V test, the estimates may be over-conservative.

AB - When the plate thickness is less than 10 mm, testing with standard sized Charpy-V notch specimens is impossible. In such cases the testing must be based on sub-sized specimens. Sometimes, standard size specimens are impractical also for thicker sections. The use of sub-sized specimens requires extrapolation of the result from the sub-sized specimen to correspond to the result from a standard sized specimen. In this work, literature data combined with newly generated data were collected and examined in order to find the correct normalisation procedure for sub-sized specimen, upper shelf impact energy data. The resulting normalisation procedure, combined with a new Charpy-V-J–R curve correlation, was shown to produce realistic estimates of the materials upper shelf fracture toughness. In the case of materials showing pronounced splitting in the Charpy-V test, the estimates may be over-conservative.

KW - Charpy-V

KW - Sub-size specimens

KW - Upper shelf

KW - Ductile fracture

KW - Size effects

U2 - 10.1016/S0308-0161(01)00063-1

DO - 10.1016/S0308-0161(01)00063-1

M3 - Article

VL - 78

SP - 463

EP - 470

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

SN - 0308-0161

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ER -