Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels
Standards have traditionally required that fracture toughness specimens be the full thickness of the base material. However, this requirement may be unnecessary, especially if minimum specimen size dimensions based on plastic zone are met and the subsized specimens are statistically adjusted for the...
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American Society of Mechanical Engineers (ASME)
2013
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ftvttcrispub:oai:cris.vtt.fi:publications/a796b030-86f3-403c-86f3-062600561d97 2023-05-15T14:23:59+02:00 Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels Walters, Carey L. Voormeeren, Lars O. Janssen, Michael Wallin, Kim 2013 https://cris.vtt.fi/en/publications/a796b030-86f3-403c-86f3-062600561d97 https://doi.org/10.1115/OMAE2013-10373 eng eng American Society of Mechanical Engineers (ASME) info:eu-repo/semantics/closedAccess Walters , C L , Voormeeren , L O , Janssen , M & Wallin , K 2013 , Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels . in ASME 32nd International Conference on Ocean, Offshore and Arctic Engineering : Materials Technology: Ocean Space Utilization . vol. 3 , V003T03A013 , American Society of Mechanical Engineers (ASME) , ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 , Nantes , France , 9/06/13 . https://doi.org/10.1115/OMAE2013-10373 contributionToPeriodical 2013 ftvttcrispub https://doi.org/10.1115/OMAE2013-10373 2022-10-13T13:52:52Z Standards have traditionally required that fracture toughness specimens be the full thickness of the base material. However, this requirement may be unnecessary, especially if minimum specimen size dimensions based on plastic zone are met and the subsized specimens are statistically adjusted for the size effect. The current paper presents the results for full-thickness proportional Single Edge Notched Bending (SENB) specimens according to BS7448-1 that are 25 mm by 50 mm in cross-section and then compares these results to specimens of the same material that are 10 mm by 20 mm in cross section. The result is that for a temperature near the lower portion of the transition curve (-60°C to -70°C), the subsize specimens are in very good agreement. These results hold for two different loading rates. After correction for statistical size effect, the fracture toughnesses of the subsize specimens are within 10% of the full-size specimens. This is conservative. The difference is attributed to the statistical nature of fracture in the transition region Other Non-Article Part of Journal/Newspaper Arctic VTT's Research Information Portal Volume 3: Materials Technology; Ocean Space Utilization |
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English |
description |
Standards have traditionally required that fracture toughness specimens be the full thickness of the base material. However, this requirement may be unnecessary, especially if minimum specimen size dimensions based on plastic zone are met and the subsized specimens are statistically adjusted for the size effect. The current paper presents the results for full-thickness proportional Single Edge Notched Bending (SENB) specimens according to BS7448-1 that are 25 mm by 50 mm in cross-section and then compares these results to specimens of the same material that are 10 mm by 20 mm in cross section. The result is that for a temperature near the lower portion of the transition curve (-60°C to -70°C), the subsize specimens are in very good agreement. These results hold for two different loading rates. After correction for statistical size effect, the fracture toughnesses of the subsize specimens are within 10% of the full-size specimens. This is conservative. The difference is attributed to the statistical nature of fracture in the transition region |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Walters, Carey L. Voormeeren, Lars O. Janssen, Michael Wallin, Kim |
spellingShingle |
Walters, Carey L. Voormeeren, Lars O. Janssen, Michael Wallin, Kim Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
author_facet |
Walters, Carey L. Voormeeren, Lars O. Janssen, Michael Wallin, Kim |
author_sort |
Walters, Carey L. |
title |
Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
title_short |
Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
title_full |
Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
title_fullStr |
Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
title_full_unstemmed |
Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
title_sort |
validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2013 |
url |
https://cris.vtt.fi/en/publications/a796b030-86f3-403c-86f3-062600561d97 https://doi.org/10.1115/OMAE2013-10373 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Walters , C L , Voormeeren , L O , Janssen , M & Wallin , K 2013 , Validation of the acceptability of 10*20 mm specimens for fracture toughness determination of high-strength steels . in ASME 32nd International Conference on Ocean, Offshore and Arctic Engineering : Materials Technology: Ocean Space Utilization . vol. 3 , V003T03A013 , American Society of Mechanical Engineers (ASME) , ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 , Nantes , France , 9/06/13 . https://doi.org/10.1115/OMAE2013-10373 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1115/OMAE2013-10373 |
container_title |
Volume 3: Materials Technology; Ocean Space Utilization |
_version_ |
1766296433497997312 |