Hisham Mohammed Ali  Hasan, Zaineb Maeh  Ismaeel, 
    The Effect of Fiber Direction on the Adhesion Strength and Energy
Release Rate in Epoxy Composite using Defragment Test,
    Research Journal of Applied Sciences,
    Volume 13,Issue 5,
    2018,
    Pages 328-331,
    ISSN 1815-932x,
    rjasci.2018.328.331,
    (https://makhillpublications.co/view-article.php?doi=rjasci.2018.328.331)
    Abstract: In this study, the adhesion strength and the energy release rate measured using defragment test for
non-woven three kinds of unidirectional laminate composite specimens reinforced by carbon, Kevlar and glass
fibers with fiber volume fraction ratio 4.8%, the direction of fiber in angles: 0°, 45°, 90° with the loading direction,
all samples post cured at temperature 25°C. From results, the high value of strength and the energy release rate
of laminate composite specimen is at 0° direction for each kind of specimens while the high value of strength
and the energy release rate of laminate composite for all kinds of specimens found in epoxy reinforcement
Kevlar.
    Keywords: Polymers composites;fiber reinforced;adhesion strength;energy release rate;defragment test