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J. Korean Ceram. Soc. > Volume 27(3); 1990 > Article
Journal of the Korean Ceramic Society 1990;27(3): 321.
통계적 파괴확률에 의한 Sin/Hip 질화규소의 신뢰도 분석(II)
송진수, 김영욱, 이재석1, 이준근
한국과학기술연구원 구조세라믹스연구실
1한국과학기술연구원 시스템 공학센터
Reliability Analysis of Statistical Failure Probabillity in Sin/Hip $Si_3N_4$(II)
ABSTRACT
For the reliability analysis of Sin/Hip silicon nitride, such as Weibull modulus m, scale parameter $sigma$0, and Batdorf crack density coefficient kB were obtained by 4-point MOR test. And its theoretical failure probabilities under arbitrary stress state were predicted using finite element analysis and KARA II reliability analysis program, which was programmed for both surface adn volume flaws. For the verification of this theoretical results, the experimental failure probabilities were measured using ring-to-ring tests at room temperature as well as 4-point MOR tests at 100$0^{circ}C$, and were compared with theoretical failure probabilities.
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