First-order reliability method
The first-order reliability method, (FORM), is a semi-probabilistic reliability analysis method devised to evaluate the reliability of a system. The accuracy of the method can be improved by averaging over many samples, which is known as Line Sampling.[1][2]
The method is also known as the Hasofer-Lind Reliability Index, developed by Professor Michael Hasofer and Professor in 1974.[3] The index has been recognized as an important step towards the development of contemporary methods to effectively and accurately estimate structural safety.[4][5]
The analysis method depends on a "Most Probable Point" on the limit state [6]
See also[]
- EN 1990
- Stress–strength analysis
References[]
- ^ Verderaime, V. (1994) "Illustrated Structural Application of Universal First-Order Reliability Method", NASA Technical Paper 3501.
- ^ Cizelj, L.; Mavko, B.; Riesch-Oppermann, H. (1994) "Application of first and second order reliability methods in the safety assessment of cracked steam generator tubing", Nuclear Engineering and Design, 147.
- ^ Huang, Jinsong, and D. V. Griffiths. "Observations on FORM in a simple geomechanics example." Structural Safety 33, no. 1 (2011): 115-119.
- ^ Dudzik, A., and U. Radoń. "The reliability assessment for steel industrial building." Advances in Mechanics: Theorectical, Computational and Interdisciplinary Issues (2016): 163-166.
- ^ Choi, Chan Kyu, and Hong Hee Yoo. "Uncertainty analysis of nonlinear systems employing the first-order reliability method." Journal of Mechanical Science and Technology 26, no. 1 (2012): 39-44.
- ^ C Annis. "How FORM/SORM is Supposed to Work"
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