Fuzzy structural analysis using α-level optimization

verfasst von

B. Möller, W. Graf, M. Beer

Abstract

In this paper new concepts and developments are presented for structural analysis involving uncertain parameters. Based on a classification of the uncertainties in structural analysis the uncertainty 'fuzziness' is identified and its quantification is demonstrated. On the basis of fuzzy set theory a general method for fuzzy structural analysis is developed and formulated in terms of the α-level optimization with the application of a modified evolution strategy. Every known analysis algorithm for the realistic simulation of load-bearing behavior may be applied in the fuzzy structural analysis in the sense of a deterministic fundamental solution. By way of example, geometrically and physically nonlinear algorithms are adopted in the presented study as a deterministic fundamental solution for the analysis of steel and reinforced concrete structures. The paper also describes coupling between α-level optimization and the deterministic fundamental solution.

Externe Organisation(en)

Technische Universität Dresden

Typ

Artikel

Journal

Computational mechanics

Band

26

Seiten

547-565

Anzahl der Seiten

19

ISSN

0178-7675

Publikationsdatum

12.2000

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Numerische Mechanik, Meerestechnik, Maschinenbau, Theoretische Informatik und Mathematik, Computational Mathematics, Angewandte Mathematik

Elektronische Version(en)

https://doi.org/10.1007/s004660000204 (Zugang: Geschlossen)