Open AccessStatistical Determination of Mechanical Properties of AL-Filled Glass/Polyester Sandwich Panel under Impact Loading
Author(s) -
Farag Mahel Mohammed,
Jamal Jalal Dawood
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1094/1/012042
Subject(s) - taguchi methods , deflection (physics) , composite material , materials science , correlation coefficient , linear regression , polyester , regression analysis , coefficient of determination , structural engineering , statistics , mathematics , physics , engineering , optics
Taguchi method and a regression model have been developed to study the effect of AL% filler contents on the glass/polyester honeycomb sandwich panel behavior subjected to impact load. Using the standard Taguchi’s array L9, analysis of means (ANOM) including main effects of S/N ratio and experimental response, ANOVA was used to determine the optimum process parameters with its significant factor. Three parameters as controlled variables have considered: AL%, mass, and height with three levels for each of them in destructive and non-destructive tests. The results show that for deflection: the mass has the highest contribution at (58.2439%) followed by the AL% filler (21.3718%). The AL% has the highest contribution for the deformation, with a percentage of (89.1144%) followed by the height and mass with a relative contribution to each other. The regression model has a good prediction, with a perfect correlation between the output and input variables. The coefficient of determination and the correlation coefficient are 89.88 % and 0.94, respectively, for deflection, while for deformation are 81.45 % and 0.9, respectively. The average error MAPE equals 6.19 % and 12.128 % for deflection and deformation, respectively. There is a strong relationship between the variables depending on the correlation coefficient, which presents as 0.94 for deflection and 0.9 for deformation. Confirmation results show that the experimental and predicted values were close to each other.