The applicability of small and ultra-small fracture toughness specimens for material characterization

Matti Valo, Tapio Planman, Kim Wallin

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

10 Citations (Scopus)

Abstract

In the study fracture toughness tests were performed with 20% sidegrooved small (10*10*55 mm) and ultra-small (3*4*27,5*5*27 and 5*10*55 mm) specimens. The objective of the study was to experimentally determine the measuring capacity of small specimens and to check the data against the statistical cleavage fracture model developed by VTT. Two pressure vessel steels, an A533B base metal (HSST-3) and a VVER base metal of 15Kh2MFA type were used in the study. Most of the tests were performed in the transition range and cleavage fracture was observed in the tests. Additional tests were conducted in the temperature range of ductile material behavior. The data indicate that the T0 (100 MPa√m) reference temperature can be determined even with 3*4 mm specimens in consistency with larger specimens by applying only the statistical specimen size correction, without any consideration on specimen constraint. The fracture resistance curves measured with 5*10 mm specimens give a good technical estimation for the larger specimen R-curves.
Original languageEnglish
Title of host publicationSmall Specimen Test Techniques
EditorsW. Corwin, S. Rosinski, E. van Walle
PublisherAmerican Society for Testing and Materials ASTM
Pages196-213
ISBN (Print)978-0-8031-2476-9
DOIs
Publication statusPublished - 1998
MoE publication typeA4 Article in a conference publication
EventSymposium on Small Specimen Test Techniques - New Orleans, United States
Duration: 13 Jan 199714 Jan 1997

Publication series

SeriesASTM Selected Technical Papers
Volume1329

Conference

ConferenceSymposium on Small Specimen Test Techniques
CountryUnited States
CityNew Orleans
Period13/01/9714/01/97

Fingerprint

Fracture toughness
Steel structures
Metals
Temperature

Cite this

Valo, M., Planman, T., & Wallin, K. (1998). The applicability of small and ultra-small fracture toughness specimens for material characterization. In W. Corwin, S. Rosinski, & E. van Walle (Eds.), Small Specimen Test Techniques (pp. 196-213). American Society for Testing and Materials ASTM. ASTM Selected Technical Papers, Vol.. 1329 https://doi.org/10.1520/STP37992S
Valo, Matti ; Planman, Tapio ; Wallin, Kim. / The applicability of small and ultra-small fracture toughness specimens for material characterization. Small Specimen Test Techniques. editor / W. Corwin ; S. Rosinski ; E. van Walle. American Society for Testing and Materials ASTM, 1998. pp. 196-213 (ASTM Selected Technical Papers, Vol. 1329).
@inproceedings{5b72c0deb5564b879903953646e4c4be,
title = "The applicability of small and ultra-small fracture toughness specimens for material characterization",
abstract = "In the study fracture toughness tests were performed with 20{\%} sidegrooved small (10*10*55 mm) and ultra-small (3*4*27,5*5*27 and 5*10*55 mm) specimens. The objective of the study was to experimentally determine the measuring capacity of small specimens and to check the data against the statistical cleavage fracture model developed by VTT. Two pressure vessel steels, an A533B base metal (HSST-3) and a VVER base metal of 15Kh2MFA type were used in the study. Most of the tests were performed in the transition range and cleavage fracture was observed in the tests. Additional tests were conducted in the temperature range of ductile material behavior. The data indicate that the T0 (100 MPa√m) reference temperature can be determined even with 3*4 mm specimens in consistency with larger specimens by applying only the statistical specimen size correction, without any consideration on specimen constraint. The fracture resistance curves measured with 5*10 mm specimens give a good technical estimation for the larger specimen R-curves.",
author = "Matti Valo and Tapio Planman and Kim Wallin",
year = "1998",
doi = "10.1520/STP37992S",
language = "English",
isbn = "978-0-8031-2476-9",
series = "ASTM Selected Technical Papers",
publisher = "American Society for Testing and Materials ASTM",
pages = "196--213",
editor = "W. Corwin and S. Rosinski and {van Walle}, E.",
booktitle = "Small Specimen Test Techniques",
address = "United States",

}

Valo, M, Planman, T & Wallin, K 1998, The applicability of small and ultra-small fracture toughness specimens for material characterization. in W Corwin, S Rosinski & E van Walle (eds), Small Specimen Test Techniques. American Society for Testing and Materials ASTM, ASTM Selected Technical Papers, vol. 1329, pp. 196-213, Symposium on Small Specimen Test Techniques, New Orleans, United States, 13/01/97. https://doi.org/10.1520/STP37992S

The applicability of small and ultra-small fracture toughness specimens for material characterization. / Valo, Matti; Planman, Tapio; Wallin, Kim.

Small Specimen Test Techniques. ed. / W. Corwin; S. Rosinski; E. van Walle. American Society for Testing and Materials ASTM, 1998. p. 196-213 (ASTM Selected Technical Papers, Vol. 1329).

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

TY - GEN

T1 - The applicability of small and ultra-small fracture toughness specimens for material characterization

AU - Valo, Matti

AU - Planman, Tapio

AU - Wallin, Kim

PY - 1998

Y1 - 1998

N2 - In the study fracture toughness tests were performed with 20% sidegrooved small (10*10*55 mm) and ultra-small (3*4*27,5*5*27 and 5*10*55 mm) specimens. The objective of the study was to experimentally determine the measuring capacity of small specimens and to check the data against the statistical cleavage fracture model developed by VTT. Two pressure vessel steels, an A533B base metal (HSST-3) and a VVER base metal of 15Kh2MFA type were used in the study. Most of the tests were performed in the transition range and cleavage fracture was observed in the tests. Additional tests were conducted in the temperature range of ductile material behavior. The data indicate that the T0 (100 MPa√m) reference temperature can be determined even with 3*4 mm specimens in consistency with larger specimens by applying only the statistical specimen size correction, without any consideration on specimen constraint. The fracture resistance curves measured with 5*10 mm specimens give a good technical estimation for the larger specimen R-curves.

AB - In the study fracture toughness tests were performed with 20% sidegrooved small (10*10*55 mm) and ultra-small (3*4*27,5*5*27 and 5*10*55 mm) specimens. The objective of the study was to experimentally determine the measuring capacity of small specimens and to check the data against the statistical cleavage fracture model developed by VTT. Two pressure vessel steels, an A533B base metal (HSST-3) and a VVER base metal of 15Kh2MFA type were used in the study. Most of the tests were performed in the transition range and cleavage fracture was observed in the tests. Additional tests were conducted in the temperature range of ductile material behavior. The data indicate that the T0 (100 MPa√m) reference temperature can be determined even with 3*4 mm specimens in consistency with larger specimens by applying only the statistical specimen size correction, without any consideration on specimen constraint. The fracture resistance curves measured with 5*10 mm specimens give a good technical estimation for the larger specimen R-curves.

U2 - 10.1520/STP37992S

DO - 10.1520/STP37992S

M3 - Conference article in proceedings

SN - 978-0-8031-2476-9

T3 - ASTM Selected Technical Papers

SP - 196

EP - 213

BT - Small Specimen Test Techniques

A2 - Corwin, W.

A2 - Rosinski, S.

A2 - van Walle, E.

PB - American Society for Testing and Materials ASTM

ER -

Valo M, Planman T, Wallin K. The applicability of small and ultra-small fracture toughness specimens for material characterization. In Corwin W, Rosinski S, van Walle E, editors, Small Specimen Test Techniques. American Society for Testing and Materials ASTM. 1998. p. 196-213. (ASTM Selected Technical Papers, Vol. 1329). https://doi.org/10.1520/STP37992S