Artificial Boundary Conditions in Sensitivity Based Finite Element Model Updating and Structural Damage Detection

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.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2005
Accession Number
ADA443260

Entities

People

  • Constance R. S. Fernandez

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Cantilever Beams
  • Computational Science
  • Computer Programs
  • Computer Simulations
  • Computers
  • Curve Fitting
  • Damage Detection
  • Detection
  • Electrical Engineering
  • Equations
  • Errors
  • Figure Of Merit
  • Modal Analysis
  • Molecular Dynamics
  • Resonant Frequency

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Computational Modeling and Simulation
  • Systems Analysis and Design