Accession Number:

ADA076541

Title:

Aerostructure Nondestructive Evaluation by Thermal Field Techniques.

Descriptive Note:

Final rept. 17 Mar 78-17 Jan 79,

Corporate Author:

VILLANOVA UNIV PA DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• McLaughlin,P. V. , Jr.
• McAssey,E. V. , Jr.
• Deitrich,R. C.

Report Date:

1979-11-01

Pagination or Media Count:

38.0

Abstract:

Certain types of flaws and damage in composite materials are not readily observable by visual examination. Examples of these are delaminations, blindside impact damage, and sub-surface laminar cracks. Programs are currently underwaty to develop methods of detecting such flaws by many techniques, among which are X-ray, neutron radiography, ultrasonic transmission and reflectance, eddy current, and thermography. This report describes results of an experimental and analytical research investigation to evaluate infrared thermography as an NDE tool to locate and structural damage which are not easily located by visual examination. Also discussed are possible applications to aluminum structures. Author

Descriptors:

• *NONDESTRUCTIVE TESTING
• *COMPOSITE MATERIALS
• *DEFECTS(MATERIALS)
• *THERMOGRAPHY
• TEST AND EVALUATION
• IMPACT
• DAMAGE
• LAMINATES
• CRACKS
• X RAYS
• VISUAL INSPECTION
• REFLECTANCE
• EDDY CURRENTS

Subject Categories:

• Radiation and Nuclear Chemistry
• Laminates and Composite Materials
• Test Facilities, Equipment and Methods
• Printing and Graphic Arts

Distribution Statement:

APPROVED FOR PUBLIC RELEASE