Acoustic Emission as a NDE Technique for Determining Composite Rotor Blade Reliability,

Abstract

This paper discusses the progress made in an ongoing program to investigate the use of acoustic emission (AE) to determine nondestructively the structural integrity of a composite main rotor blade. The blade is constructed primarily of S glass/epoxy and aramid/epoxy. The blade structure is composed of a multiple-cell filament-wound spar, an aramid trailing edge and a filament-wound blade skin supported by an aramid fiber paper honeycomb core. The design and manufacture of these blades have been presented elsewhere. A total of four blades are being tested, two blades with known areas of delamination and two blades without these defects. (Author, modified-PL).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA090440

Entities

People

  • Richard J. Shuford
  • William W. Houghton

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Aerospace Industry
  • Composite Materials
  • Composite Structures
  • Delamination
  • Detectors
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Mechanical Properties
  • Reinforced Plastics
  • Stresses
  • Test And Evaluation

Fields of Study

  • Materials science
  • Physics

Readers

  • Aerodynamics.
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.