Artificial boundary conditions in sensitivity based finite element model updating and structural damage detection
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Authors
Fernandez, Constance R. S.
Subjects
Advisors
Gordis, Joshua H.
Date of Issue
2005-12
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
A finite element (FE) model is a computational representation of a given structure. In order for the FE model to accurately predict structure response, the model is "updated" or improved. This thesis investigates the use of artificial boundary conditions in sensitivity-based model updating and damage detection. A comparative analysis was conducted on the accuracy of error identification and location with respect to the artificial boundary conditions imposed and the number of modes retained. Results are demonstrated with actual test data from a simple structure.
Type
Thesis
Description
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NPS Report Number
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Funding
Format
xiv, 149 p. : ill. ;
Citation
Distribution Statement
Approved for public release; distribution is unlimited.