Use of Cholesteric Liquid Crystals for Locating Voids in Adhesively Bonded Helicopter Rotor Blades.

Abstract

This paper researches the feasibility for using cholesteric liquid crystals for locating the unbonded areas or voids in adhesively bonded helicopter rotor blades. Results of testing two tail rotors are presented and analyzed. A general review of other nondestructive testing methods for rotor blades and a review of liquid crystals is also included. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1974
Accession Number
AD0785502

Entities

People

  • Larry V. Best

Organizations

  • United States Army Materiel Command

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Crystals
  • Helicopter Rotors
  • Helicopters
  • Liquid Crystals
  • Nondestructive Testing
  • Rotary Wing Aircraft
  • Tail Rotors
  • Test Methods
  • Vehicles

Readers

  • Aerospace Engineering
  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.