蜂窝夹层板的振动声学外文文献.pdf

Composite Structures 187 (2018) 593–603 Contents lists available at ScienceDirect Composite Structures journal homepage: /locate/compstruct Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich T panels a,⁎ b c c,d Mohammad Sadegh Mazloomi , Mostafa Ranjbar , Luca Boldrin , Fabrizio Scarpa , Sophoclis Patsiase, Neriman Ozadaa a Department of Mechanical Engineering, Eastern Mediterranean University, Famagusta, TRNC via Mersin 10, Turkey b Department of Mechanical Engineering, Ankara Yıldırım Beyazıt Üniversitesi, Ankara, Turkey c Bristol Composites Institute (ACCIS), University of Bristol, BS8 1 TR Bristol, UK d Dynamics and Control Research Group (DCRG), CAME, University of Bristol, BS8 1TR Bristol, UK e Mechanical Methods, Rolls-Royce plc, PO Box 31, DE24 8BJ Derby, UK A R T I C L E I N F O A B S T R A C T Keywords: This paper describes the vibroacoustic behavior of sandwich panels with a novel core topology made from 2- Auxetic dimensionally gradient auxetic hexagonal honeycombs. The 2D gradient core enables a tailoring of localized Hexagonal mechanical properties of the sandwich structure in different regions of the panel. A homogenized finite element 2-D gradient