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A discourse on sensitivity analysis for discretely-modeled structuresA descriptive review is presented of the most recent methods for performing sensitivity analysis of the structural behavior of discretely-modeled systems. The methods are generally but not exclusively aimed at finite element modeled structures. Topics included are: selections of finite difference step sizes; special consideration for finite difference sensitivity of iteratively-solved response problems; first and second derivatives of static structural response; sensitivity of stresses; nonlinear static response sensitivity; eigenvalue and eigenvector sensitivities for both distinct and repeated eigenvalues; and sensitivity of transient response for both linear and nonlinear structural response.
Document ID
19910012264
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Adelman, Howard M. (NASA Langley Research Center Hampton, VA., United States)
Haftka, Raphael T. (Virginia Polytechnic Inst. and State Univ. Blacksburg., United States)
Date Acquired
September 6, 2013
Publication Date
March 1, 1991
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TM-104065
NAS 1.15:104065
Accession Number
91N21577
Funding Number(s)
PROJECT: RTOP 506-43-41-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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