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- W2887756078 abstract "The residual mechanical properties of Ti/APC-2/Kevlar/epoxy hybrid composite laminates after low velocity impact were investigated at room temperature. There were three types of samples tested, including three layered [Ti/(0/90) s /Ti], five layered [Ti/(0/90) 2 /Ti] s and nine layered [Ti/Kevlar/Ti/(0/90) 2 /Ti] s. The lay-ups of APC-2 were stacked in a way of cross-ply sequence, while Ti layer was anodized with chromic acid anodic method. Ti and APC-2 were combined together to fabricate the composite laminates via hot press curing process. Kevlar layers were added to cover fiver-layer composite laminates to fabricate nine-layered composite laminates via vacuum assisted resin transfer molding. The drop-weight tests were conducted with a hemispherical nosed projectile in 10 mm diameter. The impact loads were 5kg and 10kg according to the simulated results by ANSYS. The impact heights were increased until the samples were penetrated or the height reached the maximum height, 1.50 m, of our instrument. The static tensile tests were conducted to measure the composite laminate residual mechanical properties after the impact testing. The results showed that the bottom Ti layer absorbed more internal energy than the top Ti layer, so that the cracks were found on the bottom Ti layer more often. The crack shape was the opening that resembling petal after the penetration. Also, the ultimate tensile strength reduced significantly after the impact, and it raised slightly after the samples fully penetrated. The initial longitudinal compliance increased with the impact height increasing and decreased after the samples penetrated. Comparing the experimental data with the numerical simulation results, we found the latter was more serious than the former. On the conservative side, the results of simulation can be adopted for applications in the case of no testing data available." @default.
- W2887756078 created "2018-08-22" @default.
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- W2887756078 date "2018-06-20" @default.
- W2887756078 modified "2023-09-24" @default.
- W2887756078 title "Numerical Simulation and Experimental Verification of Ti/APC-2/Kevlar Hybrid Composite Laminates due to Low-Velocity Impact" @default.
- W2887756078 hasPublicationYear "2018" @default.
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