Accession Number : ADA185014

Title :   Development of Encapsulated Dye for Surface Impact Damage Indicator System.

Descriptive Note : Final rept. Jul 85-Dec 86,

Corporate Author : AMES LAB IA

Personal Author(s) : Light, Glenn ; Thompson, D O

PDF Url : ADA185014

Report Date : Sep 1987

Pagination or Media Count : 28

Abstract : Described are the results of two phases of a MIPR program to develop a rapid scan method of detecting the occurrence of foreign-object-damage (FOD) to composite structural components are reported. The Nondestructive Evaluation (NDE) technique is based on an encapsulated dye system within the paint to detect and partially quantify FOD to composite structures. The major accomplishments of this effort were the encapsulation, microencapsule incorporation into the AU polyurethane paint, and initial correlation study of impact damage to impact coating indication. It is the conclusion of the work reported here that the encapsulated damage detection system offers a feasible rapid scan inspection system for carbon-epoxy composites that with further development could play a significant role in the NDE inspection of composite airframe structures.

Descriptors :   *COATINGS, *DYES, *EPOXY COMPOSITES, *INDICATORS, IMPACT POINT, NONDESTRUCTIVE TESTING, POLYURETHANE RESINS, PAINTS, IMPACT TESTS, DAMAGE, DETECTION, AIRFRAMES, COLORS

Subject Categories : Laminates and Composite Materials
      Coatings, Colorants and Finishes
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE