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AN EASILY IMPLEMENTED STATIC CONDENSATION METHOD FOR STRUCTURAL SENSITIVITY ANALYSIS.

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Title: AN EASILY IMPLEMENTED STATIC CONDENSATION METHOD FOR STRUCTURAL SENSITIVITY ANALYSIS.
Authors: Gangadharan, S. N.1, Haftka, R. T.1, Nikolaidis, E.1
Source: Communications in Applied Numerical Methods. Apr1990, Vol. 6 Issue 3, p161-171. 11p.
Subjects: Structural engineering software, Structural analysis (Engineering), Condensation, Structural optimization, Structural design, Parameter estimation, Finite element method, Numerical analysis, Mathematical analysis
Abstract: In many situations, the sensitivity of the response of a structure to parameters affecting only a small part of the structure is desired. In such cases, it is efficient to use substructuring or static condensation approaches. However, static condensation is not available in all finite-element codes, and its implementation requires access to and familiarity with the source code of the program. The present paper suggests an alternative version of static condensation for sensitivity calculations which is easy to implement without access to the source code of the finite-element program. The proposed approach (black-box method) is demonstrated by applying it in system identification of joint parameters of 3-D frame structures using a direct method for evaluating the sensitivity derivatives of the structural response with respect to the joint parameters. [ABSTRACT FROM AUTHOR]
Copyright of Communications in Applied Numerical Methods is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: <searchLink fieldCode="DE" term="%22Structural+engineering+software%22">Structural engineering software</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+analysis+%28Engineering%29%22">Structural analysis (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Condensation%22">Condensation</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+optimization%22">Structural optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+design%22">Structural design</searchLink><br /><searchLink fieldCode="DE" term="%22Parameter+estimation%22">Parameter estimation</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+analysis%22">Mathematical analysis</searchLink>
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  Data: In many situations, the sensitivity of the response of a structure to parameters affecting only a small part of the structure is desired. In such cases, it is efficient to use substructuring or static condensation approaches. However, static condensation is not available in all finite-element codes, and its implementation requires access to and familiarity with the source code of the program. The present paper suggests an alternative version of static condensation for sensitivity calculations which is easy to implement without access to the source code of the finite-element program. The proposed approach (black-box method) is demonstrated by applying it in system identification of joint parameters of 3-D frame structures using a direct method for evaluating the sensitivity derivatives of the structural response with respect to the joint parameters. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Communications in Applied Numerical Methods is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/cnm.1630060302
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        Text: English
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        PageCount: 11
        StartPage: 161
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      – SubjectFull: Structural engineering software
        Type: general
      – SubjectFull: Structural analysis (Engineering)
        Type: general
      – SubjectFull: Condensation
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      – SubjectFull: Structural optimization
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      – SubjectFull: Structural design
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      – SubjectFull: Parameter estimation
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      – SubjectFull: Finite element method
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      – SubjectFull: Numerical analysis
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      – TitleFull: AN EASILY IMPLEMENTED STATIC CONDENSATION METHOD FOR STRUCTURAL SENSITIVITY ANALYSIS.
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            NameFull: Haftka, R. T.
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              Text: Apr1990
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              Y: 1990
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