@article{MAKHILLRJAS201813510098, title = {The Effect of Fiber Direction on the Adhesion Strength and Energy Release Rate in Epoxy Composite using Defragment Test}, journal = {Research Journal of Applied Sciences}, volume = {13}, number = {5}, pages = {328-331}, year = {2018}, issn = {1815-932x}, doi = {rjasci.2018.328.331}, url = {https://makhillpublications.co/view-article.php?issn=1815-932x&doi=rjasci.2018.328.331}, author = {Hisham Mohammed Ali and}, keywords = {Polymers composites,fiber reinforced,adhesion strength,energy release rate,defragment test}, 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.} }