Modelling of Fatigue-Type Seismic Damage for Nuclear Power Plants

Tamás János Katona

Nuclear Power Plant Paks Ltd., Paks, Hungary.

DOI: 10.4236/ojsst.2012.22006                

Abstract

Assessment of seismic safety of the nuclear power plants requires knowledge of plant fragilities. In the paper, preliminary analysis is made on use of the cumulative absolute velocity in modelling of fatiguetype seismic damage. The dependence of the cumulative absolute velocity on the strong motion parameters is analysed. It is demonstrated that the cumulative absolute velocity is an appropriate damage indicator for fatigue failure mode. Failure criteria are defined in terms of cumulative absolute velocity using various fatigue failure theories.

Keywords

Seismic Fragility; Cumulative Absolute Velocity; Fatigue

Conflicts of Interest

The authors declare no conflicts of interest.

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