Effect of bending on the room-temperature tensile strengths of structural ceramics
Results for nearly fifty, room-temperature tensile tests conducted on two advanced, monolithic silicon nitride ceramics are evaluated for the effects of bending and application of various Weibull statistical analyses. Two specimen gripping systems (straight collet and tapered collet) were evaluated for both success in producing gage section failures and tendency to minimize bending at failure. Specimen fabrication and grinding technique consderations are briefly reviewed and related to their effects on successful tensile tests. Ultimate tensile strengths are related to the bending measured at specimen failure and the effects of the gripping system on bending are discussed. Finally, comparisons are made between the use of censored and uncensored data sample sets for determining the maximum likelihood estimates of the Weibull parameters from the tensile strength distributions.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10151084
- Report Number(s):
- CONF-9206187-2; ON: DE92015196
- Resource Relation:
- Conference: 7. Society for Experimental Mechanics (SEM) international congress on experimental mechanics,Las Vegas, NV (United States),8-11 Jun 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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