Design by analysis, codes, standards and rules on EAF-Applicability to stainless steels in PWR primary piping

Jussi Solin, Tommi Seppänen, Petri Lemettinen, Rami Vanninen, Erkki Pulkkinen

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

Abstract

This paper discusses general principles, assumptions and challenges in management of fatigue in operating NPP's. The roots and state-of-the-art in different design codes, design curves and rules are briefly reviewed. It is noted that the ASME Boiler and Pressure Vessel Code, Section III was originally prepared as a Design Code to ensure appropriate design and manufacture of nuclear vessels. 'Design by Rule' was replaced by 'Design by Analysis'. Today, ASME III and the related international codes are also used for 'Operation by Analysis'. Demonstration that the fatigue usage factor is less than unity is not sufficient for proactive component life management. Quantitative analyses of fatigue usage and factors affecting it are needed, including the environmental effects. Differences between the design curves and penalty factors for environmental effects are illustrated through selected examples.

Original languageEnglish
Title of host publicationCodes and Standards
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)978-0-7918-8531-4
DOIs
Publication statusPublished - 2021
MoE publication typeA4 Article in a conference publication
EventASME 2021 Pressure Vessels and Piping Conference, PVP 2021 - Virtual, Online
Duration: 13 Jul 202115 Jul 2021

Publication series

SeriesAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume1
ISSN0277-027X

Conference

ConferenceASME 2021 Pressure Vessels and Piping Conference, PVP 2021
CityVirtual, Online
Period13/07/2115/07/21

Keywords

  • Codes and standards
  • EAF
  • Fatigue
  • Stainless steel

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