Damage identification of laminated composite structures based on dynamic residual forces

Hisao Fukunaga, Masaki Kameyama, Yoshiro Ogi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper shows a damage identification method based on dynamic residual forces which can be evaluated using an analytical model of undamaged structures and measured vibration data of damaged structures. The method consists of a two-step damage detection procedure. In the first step, a rough damage region is identified from the dynamic residual forces. In the next step, error vectors of the residual forces are minimized to identify the accurate location and extent of structural damage. Effect of measurement points and measurement errors on the identification results is examined through numerical examples on symmetric laminated plates.

Original languageEnglish
Pages (from-to)209-218
Number of pages10
JournalAdvanced Composite Materials: The Official Journal of the Japan Society of Composite Materials
Volume10
Issue number2-3
DOIs
Publication statusPublished - 2001 Jan 1

Keywords

  • Damage identification
  • Laminated composite
  • Natural frequency
  • Natural mode
  • Residual force
  • Vibration

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering

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