  Dynamic response of sandwich beams with resonators embedded in the cores
subjected to impact loads is studied. Using finite element models the
effectiveness of various local resonator frequencies under a given impact load
is compared to the behavior of an equivalent mass beam. It is shown that
addition of appropriately chosen local resonators into the sandwich beam is an
effective method of improving its flexural bending behavior under impact loads.
The effect of a given local resonance frequency under different impact load
durations is also studied. It is demonstrated that the choice of appropriate
local resonance frequency depends on the impact duration. Further, by
performing transverse impact experiments, the finite element models are
verified and the advantage of using internal resonators under impact loading
conditions is demonstrated.
