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Influence of the velocity and impact angle on the distribution of the surface defects of a sandblasted glass
Author(s) -
Barka Brahim,
Faci Abdelaziz,
Bouaouadja Noureddine,
Bousbaa Chaabane,
Benachour Djaafar,
Fatmi Messaoud
Publication year - 2018
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.12349
Subject(s) - weibull distribution , materials science , surface (topology) , soda lime , erosion , composite material , degradation (telecommunications) , geometry , geology , mathematics , statistics , paleontology , telecommunications , computer science
Abstract Sandblasting erosion tests were simulated in laboratory to study the size distribution of defects generated by sandstorms in the Saharan regions on soda lime glass, considering different velocities ( V = 15, 25, 35 m/s) and different impact angles (α = 30°, 60°, 90°). The influence of these 2 parameters on the defect sizes and the defects number was studied. The defect sizes were measured on a surface of 1 cm 2 in the central zone of the damaged surfaces. The damaged surfaces show that the defects with varying sizes are randomly distributed. The surface degradation increases as the velocity and the impact angle increase. Weibull analysis was introduced to characterize the size distribution of surface defects for different test conditions. Weibull plots indicate that the behavior is presented following 2 aspects: The first aspect is unimodal which exists only in 2 extreme conditions, and the second aspect is bimodal, but only for intermediate cases.