Use of Weibull Statistics to Correlate MOR, Ball‐on‐Ring, and Rotational Fast Fracture Tests

Abstract

Fast fracture strength data on slip‐cast reaction‐bonded Si3N4 determined by uniaxial MOR, biaxial ball‐on‐ring tests, and speed of rotational failure measurements were correlated using Weibull statistics and finite‐element techniques. The agreement between predicted and observed values demonstrated the applicability of the Weibull equation.

A Simplified Structural Ceramic Design Technique

“…Some possible shortcomings in the Weibull method have been mentioned in the literature and possible methods to improve reliability prediction have been suggested (1)(2)(3)(4)(5). However the base Weibull theory has been demonstrated to work quite well for many practical applications (6)(7)(8)(9)(10), and is the basis for the work presented here. The rational and justification of the Weibull probabilistic theory are given in the literature (7,10,11) and are only repeated here in a much abbreviated form.…”

The comparison of relative reliability on biaxial and three point flexural strength testing methods of light curing composite resin

“…취성이 매우 높고 시편 제작에 따른 결함의 영향을 많이 받는 세라믹 분야에 있어서는 재료의 보다 정확한 물성의 측정을 위한 방법으로 이축 강도 시험을 이용한 굴곡 강도 의 측정이 많이 사용되어왔다 [14][15][16][17] . 이축 굴곡 강도에 대한 이론적 분석과 유한 요소법을 이용한 시뮬레이션, 그리고 지금까지 축적된 여러 연구에 있어서 3점 굴곡 강도에 비해 이축 굴곡 강도가 우수한 결과를 보임이 입증되었다 5,13) .…”