Evaluation of Nondestructive Underwater Timber Inspection Techniques

Abstract

This report presents the assessment of potential techniques for underwater nondestructive testing of timber piles. Three techniques are discussed: X-ray tomography, indirect ultrasonic testing, and impact testing. A computerized axial tomography (CAT) system has never been used underwater to date. However, studies concluded that the underwater application of tomography is technically feasible. A brief introduction to the proposed prototype underwater CAT system is presented. In addition, results of laboratory and field tests to evaluate the capability of an indirect ultrasonic system and impact system to accurately measure the percent cross-sectional wood loss are presented in detail. Originator-supplied keywords include: underwater inspection, nondestructive testing, waterfront facilities, ultrasonic testing, and impact testing.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1984
Accession Number
ADA147537

Entities

People

  • C. A. Keeney
  • S. E. Pollio

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Waves
  • Civil Engineering
  • Construction
  • Detection
  • Detectors
  • Engineers
  • Environmental Protection
  • Frequency Bands
  • Fungi
  • Measurement
  • Oceanography
  • Resonant Frequency
  • Sound Waves
  • Test And Evaluation
  • Test Equipment
  • Web Browsers

Readers

  • Facility/Structural Engineering.
  • Instructional Design and Training Evaluation.
  • Medical Imaging.