Fatigue Assessment in Light Water Reactors for Long Term Operation

Name: Fatigue Assessment in Light Water Reactors for Long Term Operation
ISBN: 9789201282224

Publisher:: International Atomic Energy Agency
Release Date:: 18 July 2023
Status:: Check Availability
ISBN:: 9789201282224

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Description

Fatigue is a major element in time limited ageing analysis for long term operation of nuclear power plants (NPPs). It is important to understand how cracks occur and grow as a result of fatigue, and then assess fatigue failure. In the design and operating phase of NPPs, it is essential to consider the concurrent loadings associated with the design transients, thermal stratification, seismically induced stress cycles, and all relevant loads due to the various operational modes. After repeated cyclic loading, crack initiation can occur at the most highly affected locations if sufficient localized micro-structural damage has accumulated. This publication provides practical guidelines on how to identify and manage fatigue issues in NPPs. It explains the mechanism of fatigue, identifies which elements are the major contributors, and details how fatigue can be minimized in the design phase for new NPPs.

ISBN 9789201282224

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