@article{MAKHILLJEAS2020151419364,
    title = {Behavior of Hybrid Composite Structure Under Low Impact Velocity},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {15},
    number = {14},
    pages = {2772-2780},
    year = {2020},
    issn = {1816-949x},
    doi = {jeasci.2020.2772.2780},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2020.2772.2780},
    author = {Nagwa,A.M.,A. and},
    keywords = {Fiber metal laminate,aluminum,woven glass,Kevlar fabric,quasi-static indentation,drop weight test},
    abstract = {FMLs represent a significant evolution in
airframe material technology. In the present study, two
different types of FMLs (aluminum/reinforced fiberglass
and aluminum/reinforced Kevlar) are manufactured and
investigated. FMLs specimens were prepared using hand
layup process with Vacuum Assisted Process (VAP).
Physical properties of the constituents have been
determined. The current work is focused on the low
velocity impact properties of FMLs material and their
fracture mechanics. Quasi-static indentation test for the
same impact test condition was carried out to make the
preliminary prediction for failure energy levels. The
experimental results demonstrate higher impact resistance
of FML comprising fiberglass than that including Kevlar
fibers. FMLs having Kevlar composite laminate exhibited
good impact resistance compared to the their resistance to
the quasi-static indentation. Failure modes were analyzed
and discussed.}
    }