Accession Number : AD0286284

Title :   Fixture - Tension-Compression Fatigue Testing - Design of.

Corporate Author : GENERAL DYNAMICS/CONVAIR SAN DIEGO CALIF

Report Date : 08 OCT 1962

Pagination or Media Count : 1

Abstract : The upper head of the multiplying fixture of the SF-1U fatigue testing machine, and the grips for holding the specimen were redesigned and rebuilt. Specimens can now be loaded for testing without the turning movements which introduced torque and/or bending moments into the specimen. Redesign of the specimen gripping arrangement has greatly reduced the time and labor necessary to load specimens for testing. Limited testing with steel specimens in the range of medium to high c clic tension-compression loads has shown improved fatigue life with results that compare favorably with results obtained by other means of testing. Additional work to assure true alignment of the multiplying fixture and the gripping arrangement, and further testing with low cyclic loads such as those employed in testing Al and Mg is recommended. (Author)

Descriptors :   *FATIGUE (MECHANICS), *TEST EQUIPMENT, DESIGN, STEEL, TENSILE PROPERTIES, TEST METHODS, TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE