Fracture statistics of ceramics – Weibull statistics and deviations from Weibull statistics

摘要: Abstract It is claimed in almost every experimental work on ceramics that the strength Weibull distributed. The literature demonstrates this not valid any case, but it up to now backbone design of brittle components. An overview situations deviate from Weibulls statistics presented (multi-modal flaw distribution, R-curves, etc.). also shown testing specimens with different volumes may help understand real distribution. Inaccuracies arise using Weibull’s theory are presented. Monte Carlo simulations basis standardised procedure (30 specimens) clearly reveal these deviations can be hardly detected small samples.