Response of aluminium honeycomb sandwich panels subjected to foam projectile impact – An experimental study

Yahaya, Mohd Azman; Ruan, Dong; Lu, Guoxing; Dargusch, Matthew S.

doi:10.1016/j.ijimpeng.2014.07.019

Cited by 124 publications

(30 citation statements)

References 20 publications

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“…[1][2][3][4] Low-or high-velocity impact experiments with split Hopkinson bar or gas gun loading have been conducted to study dynamic mechanical properties of metallic foams, [5][6][7][8][9] including dynamic compressive strength, failure, strain-rate sensitivity, kinetic energy absorption, and deformation mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Shock-induced melting of honeycomb-shaped Cu nanofoams: Effects of porosity

Zhao

Jian

et al. 2015

Journal of Applied Physics

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We investigate shock-induced melting in honeycomb-shaped Cu nanofoams with extensive molecular dynamics simulations. A total of ten porosities (/) are explored, ranging from 0 to 0.9 at an increment of 0.1. Upon shock compression, void collapse leads to local melting followed by supercooling at low shock strengths. Superheating occurs at / 0:1. Both supercooling of melts and superheating of solid remnants are transient, and the equilibrated shock states eventually fall on the equilibrium melting curve for partial melting. However, phase equilibrium has not been achieved on the time scale of simulations in supercooled Cu liquid (from completely melted nanofoams). The temperatures for incipient and complete melting are related to porosity via a power law, ð1 À /Þ k , and approach the melting temperature at zero pressure as / ! 1. V C 2015 AIP Publishing LLC.

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Section: Introductionmentioning

confidence: 99%

Shock-induced melting of honeycomb-shaped Cu nanofoams: Effects of porosity

Zhao

Jian

et al. 2015

Journal of Applied Physics

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“…ey provide the advantages of high specific stiffness and specific strength and good heat insulation, vibration isolation, and impact resistance [3][4][5][6][7]. Honeycomb sandwich panel structures comprise 80-90% of the shell and shell structure of spacecraft [8,9].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Model Updating of Satellite Sailboard Based on Sensitivity Analysis

Luo

Wang

et al. 2019

Shock and Vibration

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The modal analysis of a satellite sailboard finite element model is carried out to accurately investigate the response of a satellite sailboard in a complex loaded space environment through simulation. The basic excitation vibration test of the satellite sailboard is used to perform model matching and a correlation test. Appropriate design variables are selected through sensitivity analysis. Modal analysis data and vibration table excitation test response data are used to modify the finite element model. After optimization, the orthogonality of the simulated vibration mode and experimental vibration mode is good. The low-order frequency errors in the simulation model are less than 5%, the high-order errors are less than 10%, and the modal confidence MAC values are above 0.8. The modal frequency and mode shape are closer to the experimental modal frequency and mode shape, respectively. The simulation and test acceleration response of the modified finite element model of a honeycomb panel are compared under the two conditions of sine sweep and random vibration. The acceleration response curves of reference points are consistent, and amplitude and frequency errors are within acceptable limits. The model updating effect is evident, which provides good reference for research on satellites and other aerospace products.

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“…Cellular materials, such as foams, are important lightweight materials to resist impact. Nowadays, more and more attention has been paid to these materials [1][2][3][4]. Aluminium foam is produced through foaming process after additive is added into pure aluminium or aluminium alloy.…”

Section: Introductionmentioning

confidence: 99%

Damage Analysis of Aluminium Foam Panel Subjected to Underwater Shock Loading

Rong

Xiang

2017

Shock and Vibration

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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 realtime 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.

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Response of aluminium honeycomb sandwich panels subjected to foam projectile impact – An experimental study

Cited by 124 publications

References 20 publications

Shock-induced melting of honeycomb-shaped Cu nanofoams: Effects of porosity

Shock-induced melting of honeycomb-shaped Cu nanofoams: Effects of porosity

Finite Element Model Updating of Satellite Sailboard Based on Sensitivity Analysis

Damage Analysis of Aluminium Foam Panel Subjected to Underwater Shock Loading

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