Materials and Design 133 (2017) 154–168 Contents lists available at ScienceDirect Materials and Design journal homepage: www.elsevier.com/locate/matdes Experimental and numerical study on honeycomb sandwich panels under bending and in-panel compression a,b, a a b Guangyong Sun , Xintao Huo ,Dongdong Chen ,Qing Li State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, China School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia HIGHLI GH T G R A PHICAL A BS T R A C T • Crashworthiness characteristics of hon- eycomb sandwiches were studied sys- tematically. • Honeycomb sandwiches collapsed in di- verse modes with different structural parameters. • Speciﬁc energy absorption of specimens under three-point bending test are sen- sitive to structural parameters of the core. • Theoretical models were derived to pre- dict the peak load, energy absorption and collapse mode under three-point bending test. article i nfo abstract Article history: Sandwich structures have been extensively employed as lightweight composite components in aerospace and Received 24 May 2017 shipbuilding engineering for their high capacity of stiffness, strength and energy absorption. To explore the Received in revised form 24 July 2017 crushing behaviors of honeycomb
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