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Metoda pouzdanosti drugog reda (SORM)

Metoda pouzdanosti drugog reda (SORM) proširenje je metode FORM koja poboljšava procjene vjerojatnosti otkazivanja uzimajući u obzir zakrivljenost površine graničnog stanja u projektnoj točki. SORM, koju su 1979. uveli Fiessler, Neumann i Rackwitz, pruža točnije aproksimacije za nelinearne površine otkazivanja, a pritom ostaje računski učinkovita. Postala je standardno poboljšanje kada točnost FORM-a nije dovoljna.

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Izvori

  1. Fiessler, B., Neumann, H. J., & Rackwitz, R. (1979). Quadratic limit states in structural reliability. Journal of the Engineering Mechanics Division, 105(4), 661-676. DOI: 10.1061/jmcea3.0002512
  2. Breitung, K. (1984). Asymptotic approximations for multinormal integrals. Journal of Engineering Mechanics, 110(3), 357-366. DOI: 10.1061/(ASCE)0733-9399(1984)110:3(357)
  3. Hohenbichler, M., & Rackwitz, R. (1988). Improvement of second-order reliability estimates by importance sampling. Journal of Engineering Mechanics, 114(12), 2195-2199. DOI: 10.1061/(ASCE)0733-9399(1988)114:12(2195)
  4. Melchers, R. E. (2002). Structural Reliability Analysis and Prediction (2nd ed.). John Wiley & Sons. link

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ScholarGate. (2026, June 3). Second-Order Reliability Method (SORM). ScholarGate. https://scholargate.app/hr/reliability-engineering/second-order-reliability-method

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ScholarGateSecond-Order Reliability Method (Second-Order Reliability Method (SORM)). Preuzeto 2026-06-15 s https://scholargate.app/hr/reliability-engineering/second-order-reliability-method · Skup podataka: https://doi.org/10.5281/zenodo.20539026