10th International Conference of Mechanical Engineering
COMEC 2019
Abstract
In the study of the wear mechanisms, the fab factor became an important tool in the quantification of the slip response of a particle on a surface as to the ability to groove or cut. However, the fab values are usually associated with a low repeatability, making it impossible in some cases to associate them with the different abrasion mechanisms verified or until their invalidation. One practice often used to decrease standard deviation values is to increase the number of measurements. Thus, the present work aims to identify the number of measurements needed to obtain the fab factor with better repeatability. Six sample sizes were considered: 5, 10, 15, 20, 25 and 30. The results obtained showed that the sample size significantly influenced the mean values and the repeatability of the fab values.
Resumen
In the study of the wear mechanisms, the fab factor became an important tool in the quantification of the slip response of a particle on a surface as to the ability to groove or cut. However, the fab values are usually associated with a low repeatability, making it impossible in some cases to associate them with the different abrasion mechanisms verified or until their invalidation. One practice often used to decrease standard deviation values is to increase the number of measurements. Thus, the present work aims to identify the number of measurements needed to obtain the fab factor with better repeatability. Six sample sizes were considered: 5, 10, 15, 20, 25 and 30. The results obtained showed that the sample size significantly influenced the mean values and the repeatability of the fab values.
About The Speaker
Elsio Junior Bonati Borges