Analysis using the Weibull distribution with two and three parameters to determine the flexural strength of Ceramic Materials

Fernando Gonzales Tavares, Willy Ank de Morais, Enir da Silva Fonseca, Thyrson Niênio Rodrigues Sousa


This work aims to use the Weibull distribution to analyze the data obtained from the tests flexion of the prepared ceramic bodies of evidence according to the NBR 13818: 1997. The flexural strength to break of each specimen was calculated and the data obtained were used for a comparative analysis by Weibull distribution with two and three parameters. The results did not show a significant variation in strength to the bodies of evidence analyzed, but it indicated the presence of two different mechanisms of failure.

Keywords: Ceramic plate; Mechanical strength; Weibull.

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