NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects

F. Obermeier, Tomas Nicak, Elisabeth Keim, Tamás Fekete, Marc Scibetta, Tapio Planman, Anssi Laukkanen, Carlos Cueto-Felgueroso Carcía, Iradj Sattari-Far

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

Abstract

At the moment, nuclear power plant regulators do not predominantly consider constraint and biaxial effects in their concepts for failure assessment of nuclear components.
The warm pre-stressing (WPS) effect is only partly considered in some assessment procedures and codes.
There is also a lack of a harmonized treatment of these effects in the safety assessment of European plants. This paper introduces the project CABINET (Constraint and Biaxial Loading Effects and their Interactions Considering Thermal Transients) which is a collaborative project under the EU's Network of Excellence NULIFE. The overall objective of CABINET is to investigate and understand constraint, biaxial loading and WPS effects in terms of a clearly defined application window, especially in the light of long term operation.
The focus lies on already available experimental data and methodologies. The intention is to provide recommendations for a harmonized application of those effects in European nuclear safety assessment. The possibility to include different level of analysis depending on input data and acceptance of National Regulatory Body is also being evaluated.
Although the CABINET project is not completed yet, it has been found that it is possible to rationalize the different existing codes
Original languageEnglish
Title of host publication3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO)
PublisherInternational Atomic Energy Agency IAEA
Number of pages5
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO) - Salt Lake City, UT, United States
Duration: 14 May 201218 May 2012

Conference

Conference3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO)
CountryUnited States
CitySalt Lake City, UT
Period14/05/1218/05/12

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Obermeier, F., Nicak, T., Keim, E., Fekete, T., Scibetta, M., Planman, T., ... Sattari-Far, I. (2012). NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects. In 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO) International Atomic Energy Agency IAEA.
Obermeier, F. ; Nicak, Tomas ; Keim, Elisabeth ; Fekete, Tamás ; Scibetta, Marc ; Planman, Tapio ; Laukkanen, Anssi ; Carcía, Carlos Cueto-Felgueroso ; Sattari-Far, Iradj. / NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects. 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO). International Atomic Energy Agency IAEA, 2012.
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abstract = "At the moment, nuclear power plant regulators do not predominantly consider constraint and biaxial effects in their concepts for failure assessment of nuclear components. The warm pre-stressing (WPS) effect is only partly considered in some assessment procedures and codes. There is also a lack of a harmonized treatment of these effects in the safety assessment of European plants. This paper introduces the project CABINET (Constraint and Biaxial Loading Effects and their Interactions Considering Thermal Transients) which is a collaborative project under the EU's Network of Excellence NULIFE. The overall objective of CABINET is to investigate and understand constraint, biaxial loading and WPS effects in terms of a clearly defined application window, especially in the light of long term operation. The focus lies on already available experimental data and methodologies. The intention is to provide recommendations for a harmonized application of those effects in European nuclear safety assessment. The possibility to include different level of analysis depending on input data and acceptance of National Regulatory Body is also being evaluated. Although the CABINET project is not completed yet, it has been found that it is possible to rationalize the different existing codes",
author = "F. Obermeier and Tomas Nicak and Elisabeth Keim and Tam{\'a}s Fekete and Marc Scibetta and Tapio Planman and Anssi Laukkanen and Carc{\'i}a, {Carlos Cueto-Felgueroso} and Iradj Sattari-Far",
year = "2012",
language = "English",
booktitle = "3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO)",
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Obermeier, F, Nicak, T, Keim, E, Fekete, T, Scibetta, M, Planman, T, Laukkanen, A, Carcía, CC-F & Sattari-Far, I 2012, NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects. in 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO). International Atomic Energy Agency IAEA, 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO) , Salt Lake City, UT, United States, 14/05/12.

NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects. / Obermeier, F.; Nicak, Tomas; Keim, Elisabeth; Fekete, Tamás; Scibetta, Marc; Planman, Tapio; Laukkanen, Anssi; Carcía, Carlos Cueto-Felgueroso; Sattari-Far, Iradj.

3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO). International Atomic Energy Agency IAEA, 2012.

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

TY - GEN

T1 - NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects

AU - Obermeier, F.

AU - Nicak, Tomas

AU - Keim, Elisabeth

AU - Fekete, Tamás

AU - Scibetta, Marc

AU - Planman, Tapio

AU - Laukkanen, Anssi

AU - Carcía, Carlos Cueto-Felgueroso

AU - Sattari-Far, Iradj

PY - 2012

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N2 - At the moment, nuclear power plant regulators do not predominantly consider constraint and biaxial effects in their concepts for failure assessment of nuclear components. The warm pre-stressing (WPS) effect is only partly considered in some assessment procedures and codes. There is also a lack of a harmonized treatment of these effects in the safety assessment of European plants. This paper introduces the project CABINET (Constraint and Biaxial Loading Effects and their Interactions Considering Thermal Transients) which is a collaborative project under the EU's Network of Excellence NULIFE. The overall objective of CABINET is to investigate and understand constraint, biaxial loading and WPS effects in terms of a clearly defined application window, especially in the light of long term operation. The focus lies on already available experimental data and methodologies. The intention is to provide recommendations for a harmonized application of those effects in European nuclear safety assessment. The possibility to include different level of analysis depending on input data and acceptance of National Regulatory Body is also being evaluated. Although the CABINET project is not completed yet, it has been found that it is possible to rationalize the different existing codes

AB - At the moment, nuclear power plant regulators do not predominantly consider constraint and biaxial effects in their concepts for failure assessment of nuclear components. The warm pre-stressing (WPS) effect is only partly considered in some assessment procedures and codes. There is also a lack of a harmonized treatment of these effects in the safety assessment of European plants. This paper introduces the project CABINET (Constraint and Biaxial Loading Effects and their Interactions Considering Thermal Transients) which is a collaborative project under the EU's Network of Excellence NULIFE. The overall objective of CABINET is to investigate and understand constraint, biaxial loading and WPS effects in terms of a clearly defined application window, especially in the light of long term operation. The focus lies on already available experimental data and methodologies. The intention is to provide recommendations for a harmonized application of those effects in European nuclear safety assessment. The possibility to include different level of analysis depending on input data and acceptance of National Regulatory Body is also being evaluated. Although the CABINET project is not completed yet, it has been found that it is possible to rationalize the different existing codes

M3 - Conference article in proceedings

BT - 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO)

PB - International Atomic Energy Agency IAEA

ER -

Obermeier F, Nicak T, Keim E, Fekete T, Scibetta M, Planman T et al. NULIFE Project Cabinet RPV Assessment under Consideration of Constraint and Warm Pre-Stress Effects. In 3rd International Conference on NPP Life Management (PLIM) for Long Term Operations (LTO). International Atomic Energy Agency IAEA. 2012