Mechanical performance and life prediction for canister copper

Juhani Rantala, Pertti Auerkari, Jorma Salonen, Stefan Holmström, Anssi Laukkanen, Tapio Saukkonen

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

Abstract

The creep response of the OFP copper at 175°C has been studied by uniaxial, multiaxial creep testing, metallography and surface inspections. Surface cracks have been observed in a uniaxial test which has been running for more than 70 000 h (eight years). In a CT-specimen creep cavities have been observed after an exposure of 25 000 h. A purpose-built creep strain model has been implemented into FE analysis to characterize the stress multiaxiality and the stress state of the CT specimen. The results have been applied for life prediction of copper at foreseen levels of stress and temperature at the repository.
Original languageEnglish
Title of host publicationBaltica VIII
Subtitle of host publicationLife Management and Maintenance for Power Plants
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages151-162
Volume1
ISBN (Electronic)978-951-38-7592-3
ISBN (Print)978-951-38-7591-6
Publication statusPublished - 2010
MoE publication typeB3 Non-refereed article in conference proceedings
EventBALTICA VIII - International Conference on Life Management and Maintenance for Power Plants - Helsinki-Stockholm, Finland
Duration: 18 May 201020 May 2010

Publication series

NameVTT Symposium
PublisherVTT
Number264
ISSN (Print)0357–9387
ISSN (Electronic)1455–0873

Conference

ConferenceBALTICA VIII - International Conference on Life Management and Maintenance for Power Plants
CountryFinland
CityHelsinki-Stockholm
Period18/05/1020/05/10

Fingerprint

Creep
Copper
Creep testing
Metallography
Inspection
Cracks
Temperature

Cite this

Rantala, J., Auerkari, P., Salonen, J., Holmström, S., Laukkanen, A., & Saukkonen, T. (2010). Mechanical performance and life prediction for canister copper. In Baltica VIII: Life Management and Maintenance for Power Plants (Vol. 1, pp. 151-162). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 264
Rantala, Juhani ; Auerkari, Pertti ; Salonen, Jorma ; Holmström, Stefan ; Laukkanen, Anssi ; Saukkonen, Tapio. / Mechanical performance and life prediction for canister copper. Baltica VIII: Life Management and Maintenance for Power Plants. Vol. 1 Espoo : VTT Technical Research Centre of Finland, 2010. pp. 151-162 (VTT Symposium; No. 264).
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abstract = "The creep response of the OFP copper at 175°C has been studied by uniaxial, multiaxial creep testing, metallography and surface inspections. Surface cracks have been observed in a uniaxial test which has been running for more than 70 000 h (eight years). In a CT-specimen creep cavities have been observed after an exposure of 25 000 h. A purpose-built creep strain model has been implemented into FE analysis to characterize the stress multiaxiality and the stress state of the CT specimen. The results have been applied for life prediction of copper at foreseen levels of stress and temperature at the repository.",
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Rantala, J, Auerkari, P, Salonen, J, Holmström, S, Laukkanen, A & Saukkonen, T 2010, Mechanical performance and life prediction for canister copper. in Baltica VIII: Life Management and Maintenance for Power Plants. vol. 1, VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 264, pp. 151-162, BALTICA VIII - International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 18/05/10.

Mechanical performance and life prediction for canister copper. / Rantala, Juhani; Auerkari, Pertti; Salonen, Jorma; Holmström, Stefan; Laukkanen, Anssi; Saukkonen, Tapio.

Baltica VIII: Life Management and Maintenance for Power Plants. Vol. 1 Espoo : VTT Technical Research Centre of Finland, 2010. p. 151-162 (VTT Symposium; No. 264).

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

TY - GEN

T1 - Mechanical performance and life prediction for canister copper

AU - Rantala, Juhani

AU - Auerkari, Pertti

AU - Salonen, Jorma

AU - Holmström, Stefan

AU - Laukkanen, Anssi

AU - Saukkonen, Tapio

PY - 2010

Y1 - 2010

N2 - The creep response of the OFP copper at 175°C has been studied by uniaxial, multiaxial creep testing, metallography and surface inspections. Surface cracks have been observed in a uniaxial test which has been running for more than 70 000 h (eight years). In a CT-specimen creep cavities have been observed after an exposure of 25 000 h. A purpose-built creep strain model has been implemented into FE analysis to characterize the stress multiaxiality and the stress state of the CT specimen. The results have been applied for life prediction of copper at foreseen levels of stress and temperature at the repository.

AB - The creep response of the OFP copper at 175°C has been studied by uniaxial, multiaxial creep testing, metallography and surface inspections. Surface cracks have been observed in a uniaxial test which has been running for more than 70 000 h (eight years). In a CT-specimen creep cavities have been observed after an exposure of 25 000 h. A purpose-built creep strain model has been implemented into FE analysis to characterize the stress multiaxiality and the stress state of the CT specimen. The results have been applied for life prediction of copper at foreseen levels of stress and temperature at the repository.

M3 - Conference article in proceedings

SN - 978-951-38-7591-6

VL - 1

T3 - VTT Symposium

SP - 151

EP - 162

BT - Baltica VIII

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Rantala J, Auerkari P, Salonen J, Holmström S, Laukkanen A, Saukkonen T. Mechanical performance and life prediction for canister copper. In Baltica VIII: Life Management and Maintenance for Power Plants. Vol. 1. Espoo: VTT Technical Research Centre of Finland. 2010. p. 151-162. (VTT Symposium; No. 264).