### Abstract

Original language | English |
---|---|

Title of host publication | Proceedings of the 25th ESReDA Seminar |

Number of pages | 13 |

Publication status | Published - 2003 |

MoE publication type | A4 Article in a conference publication |

Event | ESReDA 25th Seminar: Lifetime Management of Structures - Paris, France Duration: 17 Nov 2003 → 19 Nov 2003 |

### Seminar

Seminar | ESReDA 25th Seminar |
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Country | France |

City | Paris |

Period | 17/11/03 → 19/11/03 |

### Fingerprint

### Keywords

- risk analysis
- RI-ISI
- probability
- fracture mechanics
- database
- analysis code
- NPP
- piping

### Cite this

*Proceedings of the 25th ESReDA Seminar*

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*Proceedings of the 25th ESReDA Seminar.*ESReDA 25th Seminar, Paris, France, 17/11/03.

**Approaches to estimate pipe failure rates for risk-informed in-service applications at nuclear power plants.** / Cronvall, Otso; Saarenheimo, Arja; Simola, Kaisa; Talja, Heli.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Approaches to estimate pipe failure rates for risk-informed in-service applications at nuclear power plants

AU - Cronvall, Otso

AU - Saarenheimo, Arja

AU - Simola, Kaisa

AU - Talja, Heli

PY - 2003

Y1 - 2003

N2 - Piping failure frequencies are needed e.g. for quantifying initiating event frequencies in probabilistic safety assessments (PSA), and for the application of quantitative risk-informed in-service inspection methodology. The paper summaries different approaches to estimate failure frequencies of piping at nuclear power plants (NPPs). These approaches are the use of structural reliability models, statistical estimation from operating experience data and the use of expert judgement for probability statements based on e.g. deterministic analyses. We illustrate the use of these approaches with a simple example. Further we discuss what kind of input data is needed and evaluate their availability.

AB - Piping failure frequencies are needed e.g. for quantifying initiating event frequencies in probabilistic safety assessments (PSA), and for the application of quantitative risk-informed in-service inspection methodology. The paper summaries different approaches to estimate failure frequencies of piping at nuclear power plants (NPPs). These approaches are the use of structural reliability models, statistical estimation from operating experience data and the use of expert judgement for probability statements based on e.g. deterministic analyses. We illustrate the use of these approaches with a simple example. Further we discuss what kind of input data is needed and evaluate their availability.

KW - risk analysis

KW - RI-ISI

KW - probability

KW - fracture mechanics

KW - database

KW - analysis code

KW - NPP

KW - piping

M3 - Conference article in proceedings

SN - 92-894-9998-2

BT - Proceedings of the 25th ESReDA Seminar

ER -