The Laboratory Application of a Nondestructive Evaluation Technique for Detecting Incipient Crack Formation in Model Offshore Structures.

Abstract

This report discusses the technical feasibility of applying an internal Friction Damping - Nondestructive Evaluation technique for offshore structures. The theory of internal friction damping is presented as it has been historically applied to various materials. The report then discusses the methodology for the application of internal friction damping. The experimental apparatus and specific laboratory technique as applied to a 1/14 scale model offshore structure is next discussed in detail. The experimental test results are related to the feasibility of employing the test technique as a device for detecting incipient cracking in offshore structures. The report includes discussion of specific conclusions and recommendations for further investigation of in-service offshore structures. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA100676

Entities

People

  • A. P. Thiruvengadam
  • Bruce Jachowski
  • David C. Fresch
  • Ray G. Brasfield

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Climate Change
  • Confidence Limits
  • Data Analysis
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Frequency Analyzers
  • Frequency Shift
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Oscillators
  • Resonant Frequency
  • Signal Generators
  • Test And Evaluation
  • Test Equipment

Readers

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