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http://hdl.handle.net/20.500.12358/26484
TitleRecovery of Structural System Properties by Minimization of Finite Element Residuals Error Function
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Abstract

ABSTRACT ln this study, a structural system identification technique using least square minimization of the finite element residuals error function is developed. ln this technique, the structural stiffness of a two dimensional plane stress, plane strain and plate element are recovered. The recovery of element stiffnesses is considered as an inverse analysis problem and can be achieved by application of known static loads and measure the response of the structure which represents the structure associated displacements. The developed technique is based on formulation of the errors J acobian matrix and minimizing the error of residuals function. Once the stiffness matrix of a structure is determined, the internal design forces due to any loading condition can be easily obtained. Two system identification problems, as numerical examples, were used to test the validity of the proposed technique. ln these problems, the …

Authors
Arafa, Mohammed
TypeJournal Article
Date2011
Published inTrends in Applied Sciences Research
SeriesVolume: 6, Number: 7
PublisherAcademic Journals Inc.
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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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