Square honeycombs are effective as cores for all-metal sandwich plates in that they combine excellent crushing strength and energy absorption with good stiffness and strength in out-of-plane shear and in-plane stretch. In applications where sandwich plates must absorb significant energy in crushing under intense impulsive loads, dynamic effects play a significant role in the behaviour of the co...

This paper aims to optimize vibro-acoustic response of (non-) auxetic sandwich panels by use topology optimization method. First, structural noise and vibration responses the panel with re-entrant hexagonal honeycomb core are studied. It is proved that interactions between vibrations induced more complex when expected for a low-frequency range, optimized reduction can be obtained proper combina...