Effect of Glass Fiber Stacking Sequence on The Notch Sensitivity of Glass Fiber Reinforced Epoxy Matrix Composites

被引:1
作者
Abdalla, G. A. [1 ]
Elbadry, Elsayed A. [1 ]
Aboraia, M. [1 ]
机构
[1] Assiut Univ, Fac Engn, Min & Met Engn Dept, Assiut 71515, Egypt
来源
EGYPTIAN JOURNAL OF CHEMISTRY | 2020年 / 63卷 / 08期
关键词
Stacking sequence; Notch sensitivity of glass composites; Characteristic distance; OPEN-HOLE; MECHANICAL-PROPERTIES; LAMINATED COMPOSITES; STRENGTH PREDICTION; TENSILE-STRENGTH; FAILURE; DAMAGE; PERFORMANCE; BEHAVIOR; STRESS;
D O I
10.21608/ejchem.2020.19497.2186
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
THIS research article investigated the effect of stacking sequence of glass fibers on the notched and unnotched tensile strength of glass fibers plies reinforced epoxy matrix composites fabricated by the hand lay-up technique. The orientation of glass fabrics was kept at [(0/90)](5), [45/45)](5)and [(0/90), (45/-45), (0/0)15 and all the laminates were prepared using five plies for different stacking sequences with fiber volume content of 38.6 vol. A) with different ratios of the specimen hole diameter to the specimen width with three different values (0.1, 0.2, 0.5). The notch sensitivity of these composites was evaluated applying Whitney-Nuismer mathematical model. The results indicated that the composites with [(0/90)15 stacking sequence displays the highest tensile unnotched strength, whereas the composites with +/- 45 1, stacking sequence displays the least strength. Moreover, the notch sensitivity of +/- 45 1, composites is almost higher than those of other stacking sequences with different D/W ratios. On the other hand, the notch sensitivity of [(0/90), (45/-45), (0/0)1, composites is slightly lower than those of 1(0/90)1 composite structures for different D/W ratios. Moreover, SEM micrographs indicates the most conunon failure modes for [(0/90), (45/45), (0/0)15 and [(45/45)1, are more significant delamination and matrix cracking than that of [left perpendicular](0; 90)15.[right perpendicular]
引用
收藏
页码:2977 / 2986
页数:10
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