Comparison of Numerical Integration and Monte Carlo Simulation Methods for Structural Reliability based on the Failure Assessment Diagram
Alexandre Francisco1; Jorge Alberto Duran1; Carolina Vilela1; Tiago do Nascimento Simões1
1 Universidade Federal Fluminense
doi:10.20906/CPS/CILAMCE2015-0416
Resumo
The Failure Assessment Diagram (FAD) can be used for reliability assessment of crack-containing pressure vessels. In the FAD diagram there are two coordinates associated with collapse and fracture parameters. Realistically, such parameters are considered as random variables in order to account for uncertainties in crack sizes, applied stress and material properties [1]. In this paper, we use marginal distributions for representing the collapse and fracture parameters, and then evaluate the corresponding probability of failure of pressure vessels based on the FAD diagram. The objective of this procedure is to compare results of structural reliability using a numerical integral approach with ones of the Monte Carlo simulation method . [1] Guohua, C., and Shuho, D, Study on the reliability assessment methodology for pressure vessels containting defects, Int. J. Pres. Ves. & Piping, 69, pp. 273-277, 1996.
Palavras-chave: Structural reliability; Monte Carlo; FAD diagram