Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme

Kim Wallin, Matti Valo, Rauno Rintamaa, Kari Törrönen, Ralf Ahlstrand

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

An extensive mechanical property evaluation has been carried out on various specimens (a Japanese steel plate (JRQ), a French forging material (FFA) and a Japanese forging material (JFL)) in the as-received and irradiated conditions. The mechanical properties measured at different temperatures include Charpy-V notch and instrumented pre-cracked Charpy data and static and dynamic elastic-plastic fracture toughness based on the J-integral, with various specimen size and geometry. Test analysis lead to conclusions regarding the use of small specimen fracture mechanical tests for investigating irradiation effects: CVN{sub pc} and RCT type specimens are suitable for determining the materials fracture toughness even in the ductile/brittle transition region provided the elastic-plastic parameter K{sub JC} is applied together with a statistical size correction. These two specimen types yield equivalent results for the fracture toughness transition shift. Charpy-V appears not to be suitable for estimating the static fracture toughness transition shift.
Original languageEnglish
Title of host publicationSpecialists Meeting on Irradiation Embrittlement and Optimization of Annealing
Place of PublicationParis
Pages495-509
Publication statusPublished - 1993
MoE publication typeB3 Non-refereed article in conference proceedings
Event1993 Specialists' Meeting on Irradiation Embrittlement and Optimization of Annealing - Paris, France
Duration: 20 Sep 199323 Sep 1993

Publication series

SeriesIAEA Conference Proceedings
NumberIWG-LMNPP 93/03
SeriesOECD/NEA/CSNI/R
NumberNEA/CSNI/R(94)1

Conference

Conference1993 Specialists' Meeting on Irradiation Embrittlement and Optimization of Annealing
CountryFrance
CityParis
Period20/09/9323/09/93

Fingerprint

Fracture mechanics
Fracture toughness
Testing
Forging
Plastics
Mechanical properties
Irradiation
Geometry
Steel
Temperature

Cite this

Wallin, K., Valo, M., Rintamaa, R., Törrönen, K., & Ahlstrand, R. (1993). Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme. In Specialists Meeting on Irradiation Embrittlement and Optimization of Annealing (pp. 495-509). Paris. IAEA Conference Proceedings, No. IWG-LMNPP 93/03, OECD/NEA/CSNI/R, No. NEA/CSNI/R(94)1
Wallin, Kim ; Valo, Matti ; Rintamaa, Rauno ; Törrönen, Kari ; Ahlstrand, Ralf. / Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme. Specialists Meeting on Irradiation Embrittlement and Optimization of Annealing. Paris, 1993. pp. 495-509 (IAEA Conference Proceedings; No. IWG-LMNPP 93/03). (OECD/NEA/CSNI/R; No. NEA/CSNI/R(94)1).
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title = "Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme",
abstract = "An extensive mechanical property evaluation has been carried out on various specimens (a Japanese steel plate (JRQ), a French forging material (FFA) and a Japanese forging material (JFL)) in the as-received and irradiated conditions. The mechanical properties measured at different temperatures include Charpy-V notch and instrumented pre-cracked Charpy data and static and dynamic elastic-plastic fracture toughness based on the J-integral, with various specimen size and geometry. Test analysis lead to conclusions regarding the use of small specimen fracture mechanical tests for investigating irradiation effects: CVN{sub pc} and RCT type specimens are suitable for determining the materials fracture toughness even in the ductile/brittle transition region provided the elastic-plastic parameter K{sub JC} is applied together with a statistical size correction. These two specimen types yield equivalent results for the fracture toughness transition shift. Charpy-V appears not to be suitable for estimating the static fracture toughness transition shift.",
author = "Kim Wallin and Matti Valo and Rauno Rintamaa and Kari T{\"o}rr{\"o}nen and Ralf Ahlstrand",
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year = "1993",
language = "English",
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publisher = "International Atomic Energy Agency IAEA",
number = "IWG-LMNPP 93/03",
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Wallin, K, Valo, M, Rintamaa, R, Törrönen, K & Ahlstrand, R 1993, Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme. in Specialists Meeting on Irradiation Embrittlement and Optimization of Annealing. Paris, IAEA Conference Proceedings, no. IWG-LMNPP 93/03, OECD/NEA/CSNI/R, no. NEA/CSNI/R(94)1, pp. 495-509, 1993 Specialists' Meeting on Irradiation Embrittlement and Optimization of Annealing, Paris, France, 20/09/93.

Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme. / Wallin, Kim; Valo, Matti; Rintamaa, Rauno; Törrönen, Kari; Ahlstrand, Ralf.

Specialists Meeting on Irradiation Embrittlement and Optimization of Annealing. Paris, 1993. p. 495-509 (IAEA Conference Proceedings; No. IWG-LMNPP 93/03). (OECD/NEA/CSNI/R; No. NEA/CSNI/R(94)1).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme

AU - Wallin, Kim

AU - Valo, Matti

AU - Rintamaa, Rauno

AU - Törrönen, Kari

AU - Ahlstrand, Ralf

N1 - HUO: YDINVOIMALAITOSMATERIAALIT CA: MET CA: REA Project code: MET30181

PY - 1993

Y1 - 1993

N2 - An extensive mechanical property evaluation has been carried out on various specimens (a Japanese steel plate (JRQ), a French forging material (FFA) and a Japanese forging material (JFL)) in the as-received and irradiated conditions. The mechanical properties measured at different temperatures include Charpy-V notch and instrumented pre-cracked Charpy data and static and dynamic elastic-plastic fracture toughness based on the J-integral, with various specimen size and geometry. Test analysis lead to conclusions regarding the use of small specimen fracture mechanical tests for investigating irradiation effects: CVN{sub pc} and RCT type specimens are suitable for determining the materials fracture toughness even in the ductile/brittle transition region provided the elastic-plastic parameter K{sub JC} is applied together with a statistical size correction. These two specimen types yield equivalent results for the fracture toughness transition shift. Charpy-V appears not to be suitable for estimating the static fracture toughness transition shift.

AB - An extensive mechanical property evaluation has been carried out on various specimens (a Japanese steel plate (JRQ), a French forging material (FFA) and a Japanese forging material (JFL)) in the as-received and irradiated conditions. The mechanical properties measured at different temperatures include Charpy-V notch and instrumented pre-cracked Charpy data and static and dynamic elastic-plastic fracture toughness based on the J-integral, with various specimen size and geometry. Test analysis lead to conclusions regarding the use of small specimen fracture mechanical tests for investigating irradiation effects: CVN{sub pc} and RCT type specimens are suitable for determining the materials fracture toughness even in the ductile/brittle transition region provided the elastic-plastic parameter K{sub JC} is applied together with a statistical size correction. These two specimen types yield equivalent results for the fracture toughness transition shift. Charpy-V appears not to be suitable for estimating the static fracture toughness transition shift.

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M3 - Conference article in proceedings

T3 - IAEA Conference Proceedings

SP - 495

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BT - Specialists Meeting on Irradiation Embrittlement and Optimization of Annealing

CY - Paris

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Wallin K, Valo M, Rintamaa R, Törrönen K, Ahlstrand R. Conclusions regarding fracture mechanics testing and evaluation of small specimens as evidenced by the Finnish contribution to the IAEA/ CRP-3 programme. In Specialists Meeting on Irradiation Embrittlement and Optimization of Annealing. Paris. 1993. p. 495-509. (IAEA Conference Proceedings; No. IWG-LMNPP 93/03). (OECD/NEA/CSNI/R; No. NEA/CSNI/R(94)1).