Research Article
Oct 1979
A Fuzzy Safety Measure
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VIEW THE REPLYPublication: Journal of the Engineering Mechanics Division
Volume 105, Issue 5
Abstract
In deciding the chances of failure of a design, two types of information are available: objective and subjective. In dealing with objective information in the form of countable data, unbiased probability distributions of loading and structural capacity are obtained by employing the principle of maximum entropy. Subjective information is considered in a linguistic form and requires a transformation from the verbal to the numerical. This is attained by the use of fuzzy set theory. The fuzzy calculus is then employed to fuzzify the objective probability in light of the subjective insight. The result is a fuzzy safety measure that expresses the confidence in the objective probability and also in other, larger values of the probability of failure. In this way objective, numerical, frequency type information can be augmented by professional insight and experience.
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Published In
Journal of the Engineering Mechanics Division
Volume 105 • Issue 5 • October 1979
Pages: 855 - 872
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© 1979 American Society of Civil Engineers.
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Published in print: Oct 1979
Published online: Feb 3, 2021
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Authors
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Colin B. Brown, M.ASCE
Prof. of Civ. Engrg., Univ. of Washington, Seattle, Wash.; also, Erskine Fellow, Univ. of Canterbury, Christchurch, New Zealand
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.