Accession Number:

ADA379428

Title:

A Review of Issues and Strategies in Non-Destructive Evaluation of Fiber Reinforced Structural Composites

Descriptive Note:

Technical memorandum

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s):

• Vary, Alex

Report Date:

1979-01-01

Pagination or Media Count:

15.0

Abstract:

This paper emphasizes the need for advanced nondestructive evaluation NDE techniques for quantitative assessment of the mechanical strength and integrity of fiber composites during manufacture and service and following repair operations. Problems and approaches are discussed relative to acceptance criteria, calibration standards, and methods for NDE of composites in strength-critical applications. It Is indicated that acousto-ultrasonic techniques provide the methods of choice in this area.

Descriptors:

• *FIBER REINFORCED COMPOSITES
• NONDESTRUCTIVE TESTING
• COMPOSITE STRUCTURES
• STRENGTH(MECHANICS)
• CALIBRATION

Subject Categories:

• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE