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Structural and Multidisciplinary Optimization
Published in: Structural and Multidisciplinary Optimization 3/2018

11-09-2017 | RESEARCH PAPER

Multi-model reliability-based design optimization of structures considering the intact configuration and several partial collapses

Authors: Clara Cid Bengoa, Aitor Baldomir, Santiago Hernández, Luis Romera

Published in: Structural and Multidisciplinary Optimization | Issue 3/2018

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Abstract

Some structures require keeping a specific safety level even if part of their elements have collapsed. The aim of this paper is to obtain the optimum design of these structures when uncertainty in some parameters that affects to the structural response is also considered. A Reliability-Based Design Optimization (RBDO) problem is formulated in order to minimize the mass of the structure fulfilling probabilistic constraints in both intact and damaged configurations. The proposed methodology combines the formulation of multi-model optimization with RBDO techniques programmed in a Matlab code. Two application examples are presented consisting of a two-dimensional truss structure with stress constraints as well as a curved stiffened panel of an aircraft fuselage subjected to buckling constraints.
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Metadata
Title
Multi-model reliability-based design optimization of structures considering the intact configuration and several partial collapses
Authors
Clara Cid Bengoa
Aitor Baldomir
Santiago Hernández
Luis Romera
Publication date
11-09-2017
Publisher
Springer Berlin Heidelberg
Published in
Structural and Multidisciplinary Optimization / Issue 3/2018
Print ISSN: 1615-147X
Electronic ISSN: 1615-1488
DOI
https://doi.org/10.1007/s00158-017-1789-y

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