Numerical structural monitoring with the uncertainty model fuzzy randomness

Wolfgang Graf, Christian Jenkel, Stephan Pannier, Jan-Uwe Sickert and Frank Steinigen

International Journal of Reliability and Safety, 2009, vol. 3, issue 1/2/3, 218-234

Abstract: In this paper, an approach is introduced in which uncertain structural analysis, assessment of damage state and performance by indicators as well as prognosis of future structural behaviour and lifetime are combined. This approach is referred to as numerical structural monitoring and may be supported by results of in-situ monitoring. The numerical structural monitoring is based on the numerical simulation of the load and modification process. The parameters of this structural process are normally uncertain parameters which are mathematically described by means of imprecise probabilities. Here, the generalised uncertainty model fuzzy randomness is applied. A fuzzy stochastic structural analysis in the time domain is adopted to take into account fuzzy randomness of the load and modification process in the numerical simulation.

Keywords: numerical structural monitoring; reliability assessment; imprecise data; structural indicators; uncertainty modelling; fuzzy randomness; simulation. (search for similar items in EconPapers)
Date: 2009
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