Failure of ceramics from multiaxial stresses. Second progress report, November 2, 1981-October 31, 1982
Technical Report
·
OSTI ID:6596908
Even though care was taken to insure isotropic flaws and to eliminate directionality in alumina, glass, and a glass-ceramic, residual stresses are still present that influence strongly the crack branching. In glass, the branching constant in biaxially loaded plates is equal to the mirror constant in uniaxially loaded plates. Alumina shows a biaxial strengthening effect as does glass-ceramic. Neither Weibull theory nor Batdorf's theory completely accounts for the experimental data in alumina. For both glass-ceramic and alumina, biaxial strengths are more stress-rate dependent than uniaxial strengths. (DLC)
- Research Organization:
- Battelle Columbus Labs., OH (USA)
- DOE Contract Number:
- W-7405-ENG-92
- OSTI ID:
- 6596908
- Report Number(s):
- BMI-2101; ON: DE83005038
- Country of Publication:
- United States
- Language:
- English
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