Essay on reliability index, probabilistic interpretation of safety factor, and convex models of uncertainty

Author Type

Faculty

Co-Author Type 1

Outside Researcher

Co-Author Type 2

Outside Researcher

Co-Author Type 3

Outside Researcher

College

Engineering and Computer Science

Department

Ocean and Mechanical Engineering

Document Type

Article

Publication/Event/Conference Title

Courses and Lectures International Centre for Mechanical Sciences

Publication Status

Version of Record

Abstract

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.

First Page

237

Last Page

271

Publication Date

12-1-1991

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