Record nummer 1796455
Titel artikel Gamma processes for time-dependent reliability of structures
Bron Advances in safety and reliability, proceedings of ESREL 2005 - European safety and reliability conference 2005, Tri City (Gdynia-Sopot-Gdansk), Poland, 27-30 June 2005
Auteur(s) Noortwijk, J.M. van ; Kallen, M.J. ; Pandey, M.D.
Deel(Jaar)Nummer (2005)
Paginering 1457 - 1464
Annotatie(s) 22 refs
Online full text
Trefwoorden (cab) waterbouwkunde / betrouwbaarheid / tijd / achteruitgang (deterioration) / stochastische processen / statistiek
Rubrieken Waterbouwkunde
Publicatie type Hoofdstuk uit boek
Taal Engels
Toelichting (Engels) In structural engineering, a distinction can be made between a structure’s resistance and its stress. A failure may then be defined as the event in which—due to deterioration—the resistance drops below the stress. This paper proposes a method to combine the two stochastic processes of deteriorating resistance and fluctuating load for computing the time-dependent reliability of a structural system. As deterioration is often uncertain and non-negative, it can best be regarded as a gamma process. A gamma process is a stochastic process with independent non-negative increments having a gamma distribution with identical scale parameter. The stress is assumed to be a stochastic process of random loads exceeding a certain threshold and occurring according to a Poisson process. The variability of the random loads is modelled by a peaks-over-threshold distribution (such as the generalised Pareto distribution). These stochastic processes of deterioration and load can be combined in a straightforward manner to perform a time-dependent reliability analysis
Betrokken instanties HKV Lijn in Water
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