TY  - JOUR
T1  - Behavior of Hybrid Composite Structure Under Low Impact Velocity
AU - Elzayady, Nagwa AU - Elhabak, A.M. AU - Nabil, A. AU - Adly, M. 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 14
SP  - 2772
EP  - 2780
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.2772.2780
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.2772.2780
KW  - Fiber metal laminate
KW  -aluminum
KW  -woven glass
KW  -Kevlar fabric
KW  -quasi-static indentation
KW  -drop weight test
AB  - 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.
ER  -