Structural Damage Identification in Stiffened Plate Fatigue Specimens Using Piezoelectric Active Sensing

Abstract

This paper presents a guided wave structural health monitoring (SHM) technique, based on the use of piezoelectric active-sensors, used to determine the structural integrity of stiffened aluminum plates. For damage detection, the transmitted power between piezoelectric transducers used for Lamb wave propagation is utilized to analyze the extent of damage in the structure. Damage initiation and propagation were successfully monitored with the guided wave technique. Overall, these methods yielded sufficient damage detection capability to warrant further investigation into field deployment. This paper summarizes considerations needed to design such SHM systems, experimental procedures and results, and recommendations that can be used as guidelines for future investigations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2011
Accession Number
ADA584793

Entities

People

  • Benjamin L. Grisso
  • Charles R. Farrar
  • Gyuhae Park
  • Liming W. Salvino

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aluminum
  • Composite Materials
  • Engineering
  • Fabrication
  • Frequency
  • Materials
  • Materials Processing
  • Measurement
  • Monitoring
  • Piezoelectric Transducers
  • Ships
  • Structural Health Monitoring
  • Surface Warfare
  • Tensile Strength
  • Transducers
  • Wave Propagation
  • Waves

Fields of Study

  • Engineering

Readers

  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design