Testing of high-strength ceramics with the split Hopkinson pressure bar

Journal Article · Sun Jan 31 23:00:00 EST 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb03820.x· OSTI ID:6266972

Staehler, J M; Predebon, W W; Pletka, B J ^[1]; Lankford, J ^[2]

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1. Michigan Technological Univ., Houghton, MI (United States)
2. Southwest Research Inst., San Antonio, TX (United States)

The split Hopkinson pressure bar was used to study the failure of a high-strength alumina at strain rates on the order of 10[sup 3]s[sup [minus]1]. There appears to be a critical strain rate above which the traditional method of using the transmitter bar signal to calculate the stress in the specimen is no longer valid. To compute the correct stress in the specimen it was necessary to use the strain signal from a gage mounted directly on the specimen.

• OSTI ID: 6266972
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 76:2; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
FABRICATION
HOT PRESSING
MATERIALS TESTING
MATERIALS WORKING
MEASURING INSTRUMENTS
MECHANICAL PROPERTIES
MECHANICAL TESTS
OXIDES
OXYGEN COMPOUNDS
POWDERS
PRESSING
RELIABILITY
STRAIN GAGES
STRAINS
STRESS ANALYSIS
TESTING