Multiaxial loading fracture of A1/sub 2/O/sub 3/ tubes: II. Weibull theory and analysis

Journal Article · Sun Jan 01 04:00:00 EST 1984 · J. Am. Ceram. Soc.; (United States)

OSTI ID:6421565

Petrovic, J J; Stout, M G

The Weibull statistical fracture theory for multiaxial loading was developed for thick- and thin-walled tube geometries subjected to multiaxial loading in tension-internal pressure, compression-internal pressure, and pure torsion. As compared to uniaxial tension, lower strengths are predicted for tension-tension stress states and higher strengths for tension-compression stress states. Comparison to experimental results for A1/sub 2/O/sub 3/ tubes indicates a reasonable agreement with Weibull theory predictions for tension-internal pressure and compression-internal pressure conditions, but an underestimation of stress state effects in pure torsion. Results indicate a weakening effect of in-flaw-plane tensile stresses, with no observed influence of in-plane compressive stresses.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM
• OSTI ID: 6421565
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 67:1; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
COMPRESSION
COMPRESSION STRENGTH
DESTRUCTIVE TESTING
FRACTURE PROPERTIES
MATERIALS TESTING
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
STRESS ANALYSIS
TENSILE PROPERTIES
TESTING
TORSION
TUBES
ULTIMATE STRENGTH