Strength of a C-Sphere flexure specimen

A. A. Wereszczak, W. Wang, O. M. Jadaan, M. J. Lance, H. T. Lin

Producción científica: Proceedingsrevisión exhaustiva

Resumen

A “C–Sphere” flexure strength specimen geometry was conceived and developed to measure a relevant strength of bearing–grade Si3N4 balls and to relate that to surface–located strength–limiting flaws and to ultimately link those flaw populations to rolling contact fatigue performance. A slot was machined into the balls to a set depth to produce the C–sphere geometry. C–sphere specimens were then diametrally compressed to produce a monotonically increasing flexure or hoop tensile stress at their surface that caused their fracture. The strength was determined using the combination of failure load, C–sphere geometry, and FEA, and the stress field was used to determine C–sphere effective areas and effective volumes as a function of Weibull modulus. A description of the specimen and the aforementioned analysis are provided and a comparison of C–sphere flexure strength distributions of two bearing grade SijN4 materials (NBD200 and SN101C) is given.
Idioma originalEnglish
Páginas281-293
Número de páginas13
DOI
EstadoPublished - ene 1 2007
Publicado de forma externa
EventoMechanical Properties and Performance of Engineering Ceramics and Composites Symposium - 30th International Conference on Advanced Ceramics and Composites - Cocoa Beach, FL, United States
Duración: ene 22 2006ene 27 2006

Conference

ConferenceMechanical Properties and Performance of Engineering Ceramics and Composites Symposium - 30th International Conference on Advanced Ceramics and Composites
País/TerritorioUnited States
CiudadCocoa Beach, FL
Período1/22/061/27/06

ASJC Scopus Subject Areas

  • Ceramics and Composites
  • Materials Chemistry

Disciplines

  • Materials Science and Engineering

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