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Application of gradient based algorithms for robust shape optimization of a tensile test specimen

Abel, Bengt and Schumacher, Axel and Bartsch, Marion (2008) Application of gradient based algorithms for robust shape optimization of a tensile test specimen. 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics - GAMM2008, 2008-03-31 - 2008-04-04, Bremen.

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Abstract

In case of technical applications such as automotive or aeronautic part optimization, uncertainties in design variables and other parameters have to be taken into account. Especially, scattering of material properties and mechanical loads have large influences on the component behavior. Due to the difficulty in calculating of sensitivities, usually stochastic algorithms are used for robust and reliability optimization. That entails a large number of function calls and long computation time. Therefore, the stochastic responses with expectation value and variances will be approximated by and responses surface in this contribution. Based on the practical example of a tensile test specimen an deterministic optimization and optimization under uncertainties will be done. The results of the different optimizations will compared and the influence of the uncertainties will be shown and discussed.

Item URL in elib:https://elib.dlr.de/56611/
Document Type:Conference or Workshop Item (Speech)
Title:Application of gradient based algorithms for robust shape optimization of a tensile test specimen
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Abel, BengtHochschule für Angewandte Wissenschaften, HamburgUNSPECIFIED
Schumacher, AxelHochschule für Angewandte Wissenschaften, HamburgUNSPECIFIED
Bartsch, MarionUNSPECIFIEDUNSPECIFIED
Date:31 March 2008
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Optimization, tensile test specimens, material inhomogeneity
Event Title:79th Annual Meeting of the International Association of Applied Mathematics and Mechanics - GAMM2008
Event Location:Bremen
Event Type:international Conference
Event Dates:2008-03-31 - 2008-04-04
Organizer:Gesellschaft für Angewandte Mathematik und Mechanik
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Low-Emission Air Traffic (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research
Deposited By: Bartsch, Dr.-Ing. Marion
Deposited On:05 Dec 2008
Last Modified:27 Apr 2009 15:34

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