Abstract
Underwater shock loading experiment device is the equipment which simulates underwater explosive shock wave through experiment. Underwater shock loading experiment device was used to conduct high-speed underwater impact on aluminium foam panel and its damage modes were studied in this paper. 3D dynamic DIC test system was used to collect and analyze real-time deformation of target board. After the experiment was completed, a numerical simulation of the series of experiment was conducted through ABAQUS finite element simulation and then a comparative analysis of the experiment was implemented. To comprehensively study damage modes of aluminium foam panel subjected to underwater shock loading, damage modes of aluminium foam panel at different shock speeds were studied. Results indicated that when a certain impact speed which could damage aluminium foam panel was reached, if the impact speed was low, aluminium foam panel would generate shear fracture at constrained boundary of flange; if the impact speed was high, aluminium foam panel would firstly generate fracture at the center and then generate shear fracture at constrained boundary of flange, and central fracture would generate three cracks.
Highlights
Cellular materials, such as foams, are important lightweight materials to resist impact
Based on the result of simulation and experiment, the damage modes of aluminium foam panels subjected to underwater shock loading are researched and analyzed
Different damage modes of aluminium foam panel were researched at two different flyer speeds
Summary
Cellular materials, such as foams, are important lightweight materials to resist impact. Deshpande et al [11, 12] theoretically analyzed a cylindrical FSI device and subsequently studied the properties of foam core material under impact loading. Latourte et al [17] and Wei et al. Shock and Vibration [18] investigated the failure modes, damage mechanisms, and deformation of both monolithic and sandwich composite panels subjected to underwater impulsive loads with FSI equipment. Xiang et al [20] investigated the dynamic response and deformation of aluminium honeycomb sandwich panels subjected to underwater impulsive loads Based on these related studies, the current exploration of FSI devices has become the research hotspot. Based on the result of simulation and experiment, the damage modes of aluminium foam panels subjected to underwater shock loading are researched and analyzed
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
