Accession Number : AD0271986

Title :   EVALUATION OF ULTRASONIC TEST DEVICES FOR INSPECTION OF ADHESIVE BONDS

Corporate Author : MARTIN CO BALTIMORE MD

Personal Author(s) : BORUFF,VON H.

Report Date : JAN 1962

Pagination or Media Count : 1

Abstract : Germany's Group A panel specimens were nondestructively tested at 2 different companies. Comparison of the test results demon rated that the respons of both type of test instruments to bond strength variations were similar. The ins ruments etected low bond strengths which resulted from voids or porosity. Lo bond strength caused by the adhesive properties of the bond or incompletely cured adhesive were not detected. Two layers of adhesive did not materially affect bond strengt but did result in a change in instrument response. Test results on honeycomb sandwich specimens show that voids or unbonded areas were detected. Data contained in a SudAviation report indicated the Bond Tester, Metallo-radar, Aerosonic IV and Micro-radar instruments responded to the various bond conditions in the same fashion as the Fokker Bond Tester. (Author)

Descriptors :   *ADHESIVES, *BONDED JOINTS, *NONDESTRUCTIVE TESTING, *ULTRASONIC RADIATION, ADHESION, BONDING, FILMS, HONEYCOMB CORES, LAMINATES, METAL PLATES, POROSITY, SANDWICH PANELS, TEST EQUIPMENT, THICKNESS

Distribution Statement : APPROVED FOR PUBLIC RELEASE