Accession Number : ADA190998

Title :   Nondestructive Evaluation of Large Scale Composite Components.

Descriptive Note : Final rept. 25 Sep 84-31 Mar 87,

Corporate Author : MCDONNELL AIRCRAFT CO ST LOUIS MO

Personal Author(s) : King, Daniel C ; Lawson, R D ; Romine, B J

PDF Url : ADA190998

Report Date : Jan 1988

Pagination or Media Count : 63

Abstract : This report covers the development of a reciprocating time-of-flight ultrasonic inspection system capable of rapid scanning on large area composite structures. Representative aircraft composite structures with flaw inclusions were fabricated to evaluate the effects of scanner design, coupling characteristics, part curvature, near and far surface defect detection, imaging, and data acquisition and storage capabilities. The results were used to combine a mechanical scanner, software, and electronics equipment into a working breadboard system. Breadboard evaluation results indicate that a downsized portable system is a viable inspection tool, and produces production quality ultrasonic C-scan images at comparable production scanning rates. Keywords: Ultrasonic testing; Large area scanner; Composite materials.

Descriptors :   *COMPOSITE STRUCTURES, *NONDESTRUCTIVE TESTING, *ULTRASONIC TESTS, AIRCRAFT, AIRFRAMES, BREADBOARD MODELS, COMPOSITE MATERIALS, COMPUTER PROGRAMS, COUPLING(INTERACTION), DATA ACQUISITION, DEFECTS(MATERIALS), ELECTRONIC EQUIPMENT, INSPECTION, MECHANICAL SCANNING, PRODUCTION RATE, STORAGE, TEST AND EVALUATION, LAMINATES, PANELS, STRENGTH WEIGHT RATIO, BULKHEADS

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE