Vibration Nondestructive Inspection of Large-Scale Composite Structures

Abstract

Conclusion: 1) Modified 2-D Gapped Smoothing Method; 2) Compared advanced sensors: MEMS & fiber optic strain sensors; 3) Applied to large-scale composite structures. Issues addressed: 1) Large vs. small size of damage; 2) Definition of damage index (square vs. absolute of curvature difference); 3) Compared MS and ODS data; 4) Effects of locations of sensors and excitation; 5) Effects of frequency range; 6) Multi-excitation with single sensing vs. multi-sensing with single excitation.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2003
Accession Number
ADA428896

Entities

People

  • M. Ken Yoon

Organizations

  • University of Delaware

Tags

DTIC Thesaurus Topics

  • Accelerometers
  • Actuators
  • Advanced Materials
  • Algorithms
  • Composite Materials
  • Composite Structures
  • Data Analysis
  • Detection
  • Detectors
  • Fibers
  • Frequency
  • Inspection
  • Materials
  • Modal Analysis
  • Strain Gages
  • Two Dimensional
  • Vibration

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Sensor Fusion and Tracking Systems.
  • Structural Health Monitoring of Composite Structures.