First-order reliability method
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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 Niels Lind in 1974.[3][4] The index has been recognized as an important step towards the development of contemporary methods to effectively and accurately estimate structural safety.[5][6]
The analysis method depends on a "Most Probable Point" on the limit state [7]
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References
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