Essay on Reliability Index, Probabilistic Interpretation of Safety Factor, and Convex Models of Uncertainty

  • I. Elishakoff
Part of the International Centre for Mechanical Sciences book series (CISM, volume 317)


This paper represents a brief review of the concepts of the reliability of structures. Some closed form solutions, as well as approximate methods are elucidated. Different attempts to describe probabilistically the so-called “safety factor” are described and some instructive counter-examples are given. High sensitivity exhibited by the reliability of the structure is documented in a model structure. The same structure is also analyzed on the basis of non-probabilistic, convex modelling. The latter is complementary to the probabilistic methods when only limited information is available on uncertain variables and functions.


Safety Factor Reliability Index Failure Surface Structural Reliability Structural Safety 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Wien 1991

Authors and Affiliations

  • I. Elishakoff
    • 1
  1. 1.Florida Atlantic UniversityBoca RatonUSA

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