Effect of metal mesh on the low-velocity impact properties of fiberglass composites
To optimize the application of composite materials in battery casings for new energy vehicles,the influence of aluminum alloy mesh on the low-velocity impact damage characteristics of glass fiber woven composites was investigated in this paper.Under impacts of five different energies,namely 12,16,20,24 and 28 J,drop hammer tests were conducted on glass fiber composite plates reinforced with aluminum alloy meshes of four different aperture sizes.Based on the experimental results,an aluminum alloy mesh with an aperture of 2 mm×3 mm was selected to be incorporated into the glass fiber layers.The effect of the layer number and impact energy of the metal mesh on the mechanical properties of the composite was studied.The effects of aluminum alloy mesh on the impact resistance of composites were analyzed in terms of peak load,maximum depression displacement,energy absorption and damage mechanism.It is found that the larger the diameter of metal mesh,the worse the impact resistance and the more serious the damage.The impact resistance of the composite material with multilayer metal mesh is obviously improved.
万方数据
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