Advances and Applications in Mechanical Engineering and TechnologyAuthor's: Tamás János Katona
Pages: [37] - [58]
Received Date: May 3, 2011
Submitted by:
Assessment of seismic safety of nuclear power plants requires convolution of plant fragilities with seismic hazard curves. In this paper, an option for representing the uncertainty of seismic fragility is outlined based on the interval and p-box concept. The conditional probability of failure is developed as a function of the cumulative absolute velocity. 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. Relation between cumulative absolute velocity of failure and various failure theories is established in this paper.
core damage probability, seismic fragility, cumulative absolute velocity, fatigue, p-box, random stress amplitude, stress intensity factor range.
