Dynamic responses of a honeycomb sandwich plate under ice floe impact

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Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (16) : 204-209.

WU Xiong1,2,LI Yinggang1,2,3,XIAO Wen1,2,CAI Wei1,2,ZHU Ling1,2

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Abstract

In this paper, numerical simulation model of honeycomb sandwich plate under ice floe impact is established by using finite element package ANSYS/LS-DYNA based on a concrete constitutive ice model. The impact force-displacement curves and the structural deformation as well as the energy absorption properties are numerically achieved. In addition, the ice wedge impact test of honeycomb sandwich plate was conducted. Result show that the top face sheet deformation mode intuitively embodies as the coupling mode of local structural indentation and global bending deformation, whereas the bottom face sheet deformation mode mainly manifests as the global bending deformation. The ice impact energy is mainly converted into the plastic deformation energy absorption of honeycomb sandwich plate and rebound kinetic energy of ice wedge as well as the energy dissipation of ice fracture failure. Numerical results are consistent with experimental results, which show the accuracy and reliability of numerical model. Furthermore, the effects of ice floe impact position and honeycomb core thickness on the dynamic responses and energy absorption are performed.
Key words: Honeycomb sandwich plates; Ice floe impact; Dynamic responses; Energy absorption; Experimental validations

Key words

Honeycomb sandwich plates / Ice floe impact / Dynamic responses / Energy absorption / Experimental validations

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WU Xiong1,2,LI Yinggang1,2,3,XIAO Wen1,2,CAI Wei1,2,ZHU Ling1,2. Dynamic responses of a honeycomb sandwich plate under ice floe impact[J]. Journal of Vibration and Shock, 2022, 41(16): 204-209

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